Home / 119,744.40-165,248.32-66,031.28

Finding the Fourth Proportional to 119,744.40, 165,248.32 and 66,031.28

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Solution

The fourth proportional to 119,744.40, 165,248.32 and 66,031.28 is: 91,123.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,744.40 : 165,248.32 = 66,031.28 : x
  2. Step 2: Convert to fraction form
    119,744.40/165,248.32 = 66,031.28/x
  3. Step 3: Cross multiply
    119,744.40x = 165,248.32 × 66,031.28
  4. Step 4: Simplify right side
    119,744.40x = 10,911,558,087.45
  5. Step 5: Solve for x
    x = 10,911,558,087.45/119,744.40
  6. Step 6: Final answer
    x = 91,123.74

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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.