Home / 104,928,704.20-157,393,056.30-85,781,081.80

Finding the Fourth Proportional to 104,928,704.20, 157,393,056.30 and 85,781,081.80

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Solution

The fourth proportional to 104,928,704.20, 157,393,056.30 and 85,781,081.80 is: 128,671,622.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,928,704.20 : 157,393,056.30 = 85,781,081.80 : x
  2. Step 2: Convert to fraction form
    104,928,704.20/157,393,056.30 = 85,781,081.80/x
  3. Step 3: Cross multiply
    104,928,704.20x = 157,393,056.30 × 85,781,081.80
  4. Step 4: Simplify right side
    104,928,704.20x = 13,501,346,637,222,306
  5. Step 5: Solve for x
    x = 13,501,346,637,222,306/104,928,704.20
  6. Step 6: Final answer
    x = 128,671,622.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.