Home / 104,792.13-144,292.89-78,988.17

Finding the Fourth Proportional to 104,792.13, 144,292.89 and 78,988.17

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Solution

The fourth proportional to 104,792.13, 144,292.89 and 78,988.17 is: 108,762.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,792.13 : 144,292.89 = 78,988.17 : x
  2. Step 2: Convert to fraction form
    104,792.13/144,292.89 = 78,988.17/x
  3. Step 3: Cross multiply
    104,792.13x = 144,292.89 × 78,988.17
  4. Step 4: Simplify right side
    104,792.13x = 11,397,431,325.11
  5. Step 5: Solve for x
    x = 11,397,431,325.11/104,792.13
  6. Step 6: Final answer
    x = 108,762.28

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1.5x scale

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.