Home / 106,656.64-147,139.68-64,191.04

Finding the Fourth Proportional to 106,656.64, 147,139.68 and 64,191.04

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Solution

The fourth proportional to 106,656.64, 147,139.68 and 64,191.04 is: 88,555.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,656.64 : 147,139.68 = 64,191.04 : x
  2. Step 2: Convert to fraction form
    106,656.64/147,139.68 = 64,191.04/x
  3. Step 3: Cross multiply
    106,656.64x = 147,139.68 × 64,191.04
  4. Step 4: Simplify right side
    106,656.64x = 9,445,049,084.47
  5. Step 5: Solve for x
    x = 9,445,049,084.47/106,656.64
  6. Step 6: Final answer
    x = 88,555.66

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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.