Home / 104,976,124.20-157,464,186.30-78,900,085.80

Finding the Fourth Proportional to 104,976,124.20, 157,464,186.30 and 78,900,085.80

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Solution

The fourth proportional to 104,976,124.20, 157,464,186.30 and 78,900,085.80 is: 118,350,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,976,124.20 : 157,464,186.30 = 78,900,085.80 : x
  2. Step 2: Convert to fraction form
    104,976,124.20/157,464,186.30 = 78,900,085.80/x
  3. Step 3: Cross multiply
    104,976,124.20x = 157,464,186.30 × 78,900,085.80
  4. Step 4: Simplify right side
    104,976,124.20x = 12,423,937,809,497,186
  5. Step 5: Solve for x
    x = 12,423,937,809,497,186/104,976,124.20
  6. Step 6: Final answer
    x = 118,350,128.70

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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.