Home / 153,402.39-211,753.08-89,760.69

Finding the Fourth Proportional to 153,402.39, 211,753.08 and 89,760.69

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Solution

The fourth proportional to 153,402.39, 211,753.08 and 89,760.69 is: 123,903.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,402.39 : 211,753.08 = 89,760.69 : x
  2. Step 2: Convert to fraction form
    153,402.39/211,753.08 = 89,760.69/x
  3. Step 3: Cross multiply
    153,402.39x = 211,753.08 × 89,760.69
  4. Step 4: Simplify right side
    153,402.39x = 19,007,102,570.43
  5. Step 5: Solve for x
    x = 19,007,102,570.43/153,402.39
  6. Step 6: Final answer
    x = 123,903.56

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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.