Home / 123,818.21-185,545.20-73,165.16

Finding the Fourth Proportional to 123,818.21, 185,545.20 and 73,165.16

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Solution

The fourth proportional to 123,818.21, 185,545.20 and 73,165.16 is: 109,640.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,818.21 : 185,545.20 = 73,165.16 : x
  2. Step 2: Convert to fraction form
    123,818.21/185,545.20 = 73,165.16/x
  3. Step 3: Cross multiply
    123,818.21x = 185,545.20 × 73,165.16
  4. Step 4: Simplify right side
    123,818.21x = 13,575,443,317.51
  5. Step 5: Solve for x
    x = 13,575,443,317.51/123,818.21
  6. Step 6: Final answer
    x = 109,640.12

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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.