Home / 83,516.19-125,142.89-64,587.16

Finding the Fourth Proportional to 83,516.19, 125,142.89 and 64,587.16

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Solution

The fourth proportional to 83,516.19, 125,142.89 and 64,587.16 is: 96,779.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,516.19 : 125,142.89 = 64,587.16 : x
  2. Step 2: Convert to fraction form
    83,516.19/125,142.89 = 64,587.16/x
  3. Step 3: Cross multiply
    83,516.19x = 125,142.89 × 64,587.16
  4. Step 4: Simplify right side
    83,516.19x = 8,082,623,859.29
  5. Step 5: Solve for x
    x = 8,082,623,859.29/83,516.19
  6. Step 6: Final answer
    x = 96,779.13

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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.