Home / 103,112.16-142,294.86-58,400.16

Finding the Fourth Proportional to 103,112.16, 142,294.86 and 58,400.16

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Solution

The fourth proportional to 103,112.16, 142,294.86 and 58,400.16 is: 80,592.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,112.16 : 142,294.86 = 58,400.16 : x
  2. Step 2: Convert to fraction form
    103,112.16/142,294.86 = 58,400.16/x
  3. Step 3: Cross multiply
    103,112.16x = 142,294.86 × 58,400.16
  4. Step 4: Simplify right side
    103,112.16x = 8,310,042,591.18
  5. Step 5: Solve for x
    x = 8,310,042,591.18/103,112.16
  6. Step 6: Final answer
    x = 80,592.27

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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.