Home / 119,890.90-165,453.45-65,446.30

Finding the Fourth Proportional to 119,890.90, 165,453.45 and 65,446.30

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Solution

The fourth proportional to 119,890.90, 165,453.45 and 65,446.30 is: 90,318.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,890.90 : 165,453.45 = 65,446.30 : x
  2. Step 2: Convert to fraction form
    119,890.90/165,453.45 = 65,446.30/x
  3. Step 3: Cross multiply
    119,890.90x = 165,453.45 × 65,446.30
  4. Step 4: Simplify right side
    119,890.90x = 10,828,316,124.74
  5. Step 5: Solve for x
    x = 10,828,316,124.74/119,890.90
  6. Step 6: Final answer
    x = 90,318.08

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1.5x scale

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.