Home / 103,345.13-142,631.89-63,082.33

Finding the Fourth Proportional to 103,345.13, 142,631.89 and 63,082.33

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Solution

The fourth proportional to 103,345.13, 142,631.89 and 63,082.33 is: 87,063.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,345.13 : 142,631.89 = 63,082.33 : x
  2. Step 2: Convert to fraction form
    103,345.13/142,631.89 = 63,082.33/x
  3. Step 3: Cross multiply
    103,345.13x = 142,631.89 × 63,082.33
  4. Step 4: Simplify right side
    103,345.13x = 8,997,551,439.22
  5. Step 5: Solve for x
    x = 8,997,551,439.22/103,345.13
  6. Step 6: Final answer
    x = 87,063.14

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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.