Home / 119,306.47-178,570.29-87,708.16

Finding the Fourth Proportional to 119,306.47, 178,570.29 and 87,708.16

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Solution

The fourth proportional to 119,306.47, 178,570.29 and 87,708.16 is: 131,275.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,306.47 : 178,570.29 = 87,708.16 : x
  2. Step 2: Convert to fraction form
    119,306.47/178,570.29 = 87,708.16/x
  3. Step 3: Cross multiply
    119,306.47x = 178,570.29 × 87,708.16
  4. Step 4: Simplify right side
    119,306.47x = 15,662,071,566.57
  5. Step 5: Solve for x
    x = 15,662,071,566.57/119,306.47
  6. Step 6: Final answer
    x = 131,275.96

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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.