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Finding the Fourth Proportional to 152,700.60, 210,727 and 89,050.70

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Solution

The fourth proportional to 152,700.60, 210,727 and 89,050.70 is: 122,890.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,700.60 : 210,727 = 89,050.70 : x
  2. Step 2: Convert to fraction form
    152,700.60/210,727 = 89,050.70/x
  3. Step 3: Cross multiply
    152,700.60x = 210,727 × 89,050.70
  4. Step 4: Simplify right side
    152,700.60x = 18,765,386,858.90
  5. Step 5: Solve for x
    x = 18,765,386,858.90/152,700.60
  6. Step 6: Final answer
    x = 122,890.07

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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.