Home / 109,478.22-151,068.04-64,147.20

Finding the Fourth Proportional to 109,478.22, 151,068.04 and 64,147.20

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Solution

The fourth proportional to 109,478.22, 151,068.04 and 64,147.20 is: 88,516.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,478.22 : 151,068.04 = 64,147.20 : x
  2. Step 2: Convert to fraction form
    109,478.22/151,068.04 = 64,147.20/x
  3. Step 3: Cross multiply
    109,478.22x = 151,068.04 × 64,147.20
  4. Step 4: Simplify right side
    109,478.22x = 9,690,591,775.49
  5. Step 5: Solve for x
    x = 9,690,591,775.49/109,478.22
  6. Step 6: Final answer
    x = 88,516.16

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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.