Home / 134,839.03-185,999.29-86,423.71

Finding the Fourth Proportional to 134,839.03, 185,999.29 and 86,423.71

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Solution

The fourth proportional to 134,839.03, 185,999.29 and 86,423.71 is: 119,214.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,839.03 : 185,999.29 = 86,423.71 : x
  2. Step 2: Convert to fraction form
    134,839.03/185,999.29 = 86,423.71/x
  3. Step 3: Cross multiply
    134,839.03x = 185,999.29 × 86,423.71
  4. Step 4: Simplify right side
    134,839.03x = 16,074,748,699.17
  5. Step 5: Solve for x
    x = 16,074,748,699.17/134,839.03
  6. Step 6: Final answer
    x = 119,214.36

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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.