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Finding the Fourth Proportional to 152,337.80, 210,225.80 and 87,806.52

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Solution

The fourth proportional to 152,337.80, 210,225.80 and 87,806.52 is: 121,172.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,337.80 : 210,225.80 = 87,806.52 : x
  2. Step 2: Convert to fraction form
    152,337.80/210,225.80 = 87,806.52/x
  3. Step 3: Cross multiply
    152,337.80x = 210,225.80 × 87,806.52
  4. Step 4: Simplify right side
    152,337.80x = 18,459,195,912.22
  5. Step 5: Solve for x
    x = 18,459,195,912.22/152,337.80
  6. Step 6: Final answer
    x = 121,172.79

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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.