Home / 71,707.02-107,545.91-68,150.40

Finding the Fourth Proportional to 71,707.02, 107,545.91 and 68,150.40

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Solution

The fourth proportional to 71,707.02, 107,545.91 and 68,150.40 is: 102,211.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,707.02 : 107,545.91 = 68,150.40 : x
  2. Step 2: Convert to fraction form
    71,707.02/107,545.91 = 68,150.40/x
  3. Step 3: Cross multiply
    71,707.02x = 107,545.91 × 68,150.40
  4. Step 4: Simplify right side
    71,707.02x = 7,329,296,444.11
  5. Step 5: Solve for x
    x = 7,329,296,444.11/71,707.02
  6. Step 6: Final answer
    x = 102,211.70

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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.