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Finding the Fourth Proportional to 158,353.07, 218,531.49 and 89,437.01

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Solution

The fourth proportional to 158,353.07, 218,531.49 and 89,437.01 is: 123,425.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,353.07 : 218,531.49 = 89,437.01 : x
  2. Step 2: Convert to fraction form
    158,353.07/218,531.49 = 89,437.01/x
  3. Step 3: Cross multiply
    158,353.07x = 218,531.49 × 89,437.01
  4. Step 4: Simplify right side
    158,353.07x = 19,544,801,628.40
  5. Step 5: Solve for x
    x = 19,544,801,628.40/158,353.07
  6. Step 6: Final answer
    x = 123,425.47

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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.