Home / 131,613.05-197,398.92-42,865.81

Finding the Fourth Proportional to 131,613.05, 197,398.92 and 42,865.81

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Solution

The fourth proportional to 131,613.05, 197,398.92 and 42,865.81 is: 64,291.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,613.05 : 197,398.92 = 42,865.81 : x
  2. Step 2: Convert to fraction form
    131,613.05/197,398.92 = 42,865.81/x
  3. Step 3: Cross multiply
    131,613.05x = 197,398.92 × 42,865.81
  4. Step 4: Simplify right side
    131,613.05x = 8,461,664,266.17
  5. Step 5: Solve for x
    x = 8,461,664,266.17/131,613.05
  6. Step 6: Final answer
    x = 64,291.98

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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.