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Finding the Fourth Proportional to 158,034.49, 218,045.57 and 90,050.01

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Solution

The fourth proportional to 158,034.49, 218,045.57 and 90,050.01 is: 124,245.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,034.49 : 218,045.57 = 90,050.01 : x
  2. Step 2: Convert to fraction form
    158,034.49/218,045.57 = 90,050.01/x
  3. Step 3: Cross multiply
    158,034.49x = 218,045.57 × 90,050.01
  4. Step 4: Simplify right side
    158,034.49x = 19,635,006,224.07
  5. Step 5: Solve for x
    x = 19,635,006,224.07/158,034.49
  6. Step 6: Final answer
    x = 124,245.07

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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.