Home / 154,437.60-231,806.20-74,531.81

Finding the Fourth Proportional to 154,437.60, 231,806.20 and 74,531.81

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Solution

The fourth proportional to 154,437.60, 231,806.20 and 74,531.81 is: 111,870.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,437.60 : 231,806.20 = 74,531.81 : x
  2. Step 2: Convert to fraction form
    154,437.60/231,806.20 = 74,531.81/x
  3. Step 3: Cross multiply
    154,437.60x = 231,806.20 × 74,531.81
  4. Step 4: Simplify right side
    154,437.60x = 17,276,935,655.22
  5. Step 5: Solve for x
    x = 17,276,935,655.22/154,437.60
  6. Step 6: Final answer
    x = 111,870.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.