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Finding the Fourth Proportional to 158,034.76, 218,045.93 and 90,050.29

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Solution

The fourth proportional to 158,034.76, 218,045.93 and 90,050.29 is: 124,245.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,034.76 : 218,045.93 = 90,050.29 : x
  2. Step 2: Convert to fraction form
    158,034.76/218,045.93 = 90,050.29/x
  3. Step 3: Cross multiply
    158,034.76x = 218,045.93 × 90,050.29
  4. Step 4: Simplify right side
    158,034.76x = 19,635,098,427.01
  5. Step 5: Solve for x
    x = 19,635,098,427.01/158,034.76
  6. Step 6: Final answer
    x = 124,245.44

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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.