Home / 118,937.16-178,470.34-69,053.12

Finding the Fourth Proportional to 118,937.16, 178,470.34 and 69,053.12

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Solution

The fourth proportional to 118,937.16, 178,470.34 and 69,053.12 is: 103,617.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,937.16 : 178,470.34 = 69,053.12 : x
  2. Step 2: Convert to fraction form
    118,937.16/178,470.34 = 69,053.12/x
  3. Step 3: Cross multiply
    118,937.16x = 178,470.34 × 69,053.12
  4. Step 4: Simplify right side
    118,937.16x = 12,323,932,739.48
  5. Step 5: Solve for x
    x = 12,323,932,739.48/118,937.16
  6. Step 6: Final answer
    x = 103,617.18

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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.