Home / 119,381.40-164,743.66-65,665.24

Finding the Fourth Proportional to 119,381.40, 164,743.66 and 65,665.24

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Solution

The fourth proportional to 119,381.40, 164,743.66 and 65,665.24 is: 90,616.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,381.40 : 164,743.66 = 65,665.24 : x
  2. Step 2: Convert to fraction form
    119,381.40/164,743.66 = 65,665.24/x
  3. Step 3: Cross multiply
    119,381.40x = 164,743.66 × 65,665.24
  4. Step 4: Simplify right side
    119,381.40x = 10,817,931,972.38
  5. Step 5: Solve for x
    x = 10,817,931,972.38/119,381.40
  6. Step 6: Final answer
    x = 90,616.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.