Home / 120,275.19-165,977.15-65,827.10

Finding the Fourth Proportional to 120,275.19, 165,977.15 and 65,827.10

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Solution

The fourth proportional to 120,275.19, 165,977.15 and 65,827.10 is: 90,839.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,275.19 : 165,977.15 = 65,827.10 : x
  2. Step 2: Convert to fraction form
    120,275.19/165,977.15 = 65,827.10/x
  3. Step 3: Cross multiply
    120,275.19x = 165,977.15 × 65,827.10
  4. Step 4: Simplify right side
    120,275.19x = 10,925,793,291.74
  5. Step 5: Solve for x
    x = 10,925,793,291.74/120,275.19
  6. Step 6: Final answer
    x = 90,839.96

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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.