Home / 152,815.60-210,901.08-89,149.60

Finding the Fourth Proportional to 152,815.60, 210,901.08 and 89,149.60

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Solution

The fourth proportional to 152,815.60, 210,901.08 and 89,149.60 is: 123,035.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,815.60 : 210,901.08 = 89,149.60 : x
  2. Step 2: Convert to fraction form
    152,815.60/210,901.08 = 89,149.60/x
  3. Step 3: Cross multiply
    152,815.60x = 210,901.08 × 89,149.60
  4. Step 4: Simplify right side
    152,815.60x = 18,801,746,921.57
  5. Step 5: Solve for x
    x = 18,801,746,921.57/152,815.60
  6. Step 6: Final answer
    x = 123,035.52

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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.