Home / 161,981.24-243,045.71-83,150.87

Finding the Fourth Proportional to 161,981.24, 243,045.71 and 83,150.87

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Solution

The fourth proportional to 161,981.24, 243,045.71 and 83,150.87 is: 124,764.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,981.24 : 243,045.71 = 83,150.87 : x
  2. Step 2: Convert to fraction form
    161,981.24/243,045.71 = 83,150.87/x
  3. Step 3: Cross multiply
    161,981.24x = 243,045.71 × 83,150.87
  4. Step 4: Simplify right side
    161,981.24x = 20,209,460,605.28
  5. Step 5: Solve for x
    x = 20,209,460,605.28/161,981.24
  6. Step 6: Final answer
    x = 124,764.21

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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.