Home / 134,875.52-186,116.42-86,391.91

Finding the Fourth Proportional to 134,875.52, 186,116.42 and 86,391.91

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Solution

The fourth proportional to 134,875.52, 186,116.42 and 86,391.91 is: 119,213.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,875.52 : 186,116.42 = 86,391.91 : x
  2. Step 2: Convert to fraction form
    134,875.52/186,116.42 = 86,391.91/x
  3. Step 3: Cross multiply
    134,875.52x = 186,116.42 × 86,391.91
  4. Step 4: Simplify right side
    134,875.52x = 16,078,953,454.79
  5. Step 5: Solve for x
    x = 16,078,953,454.79/134,875.52
  6. Step 6: Final answer
    x = 119,213.28

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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.