Home / 212,545.90-318,871.14-62,785.45

Finding the Fourth Proportional to 212,545.90, 318,871.14 and 62,785.45

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Solution

The fourth proportional to 212,545.90, 318,871.14 and 62,785.45 is: 94,193.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,545.90 : 318,871.14 = 62,785.45 : x
  2. Step 2: Convert to fraction form
    212,545.90/318,871.14 = 62,785.45/x
  3. Step 3: Cross multiply
    212,545.90x = 318,871.14 × 62,785.45
  4. Step 4: Simplify right side
    212,545.90x = 20,020,468,016.91
  5. Step 5: Solve for x
    x = 20,020,468,016.91/212,545.90
  6. Step 6: Final answer
    x = 94,193.62

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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.