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Finding the Fourth Proportional to 152,101.80, 228,152.70 and 89,116.20

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Solution

The fourth proportional to 152,101.80, 228,152.70 and 89,116.20 is: 133,674.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,101.80 : 228,152.70 = 89,116.20 : x
  2. Step 2: Convert to fraction form
    152,101.80/228,152.70 = 89,116.20/x
  3. Step 3: Cross multiply
    152,101.80x = 228,152.70 × 89,116.20
  4. Step 4: Simplify right side
    152,101.80x = 20,332,101,643.74
  5. Step 5: Solve for x
    x = 20,332,101,643.74/152,101.80
  6. Step 6: Final answer
    x = 133,674.30

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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.