Home / 119,647.20-165,115.02-65,931.66

Finding the Fourth Proportional to 119,647.20, 165,115.02 and 65,931.66

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Solution

The fourth proportional to 119,647.20, 165,115.02 and 65,931.66 is: 90,986.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,647.20 : 165,115.02 = 65,931.66 : x
  2. Step 2: Convert to fraction form
    119,647.20/165,115.02 = 65,931.66/x
  3. Step 3: Cross multiply
    119,647.20x = 165,115.02 × 65,931.66
  4. Step 4: Simplify right side
    119,647.20x = 10,886,307,359.53
  5. Step 5: Solve for x
    x = 10,886,307,359.53/119,647.20
  6. Step 6: Final answer
    x = 90,986.73

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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.