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Finding the Fourth Proportional to 151,365.68, 208,873.85 and 90,108.62

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Solution

The fourth proportional to 151,365.68, 208,873.85 and 90,108.62 is: 124,343.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,365.68 : 208,873.85 = 90,108.62 : x
  2. Step 2: Convert to fraction form
    151,365.68/208,873.85 = 90,108.62/x
  3. Step 3: Cross multiply
    151,365.68x = 208,873.85 × 90,108.62
  4. Step 4: Simplify right side
    151,365.68x = 18,821,335,125.04
  5. Step 5: Solve for x
    x = 18,821,335,125.04/151,365.68
  6. Step 6: Final answer
    x = 124,343.48

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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.