Home / 112,972.50-155,909.34-62,671.50

Finding the Fourth Proportional to 112,972.50, 155,909.34 and 62,671.50

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Solution

The fourth proportional to 112,972.50, 155,909.34 and 62,671.50 is: 86,490.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,972.50 : 155,909.34 = 62,671.50 : x
  2. Step 2: Convert to fraction form
    112,972.50/155,909.34 = 62,671.50/x
  3. Step 3: Cross multiply
    112,972.50x = 155,909.34 × 62,671.50
  4. Step 4: Simplify right side
    112,972.50x = 9,771,072,201.81
  5. Step 5: Solve for x
    x = 9,771,072,201.81/112,972.50
  6. Step 6: Final answer
    x = 86,490.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.