Home / 134,390.17-185,419.96-86,670.91

Finding the Fourth Proportional to 134,390.17, 185,419.96 and 86,670.91

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Solution

The fourth proportional to 134,390.17, 185,419.96 and 86,670.91 is: 119,581.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,390.17 : 185,419.96 = 86,670.91 : x
  2. Step 2: Convert to fraction form
    134,390.17/185,419.96 = 86,670.91/x
  3. Step 3: Cross multiply
    134,390.17x = 185,419.96 × 86,670.91
  4. Step 4: Simplify right side
    134,390.17x = 16,070,516,665.36
  5. Step 5: Solve for x
    x = 16,070,516,665.36/134,390.17
  6. Step 6: Final answer
    x = 119,581.04

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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.