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Finding the Fourth Proportional to 101,210.10, 151,572.15 and 54,359.70

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Solution

The fourth proportional to 101,210.10, 151,572.15 and 54,359.70 is: 81,409.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,210.10 : 151,572.15 = 54,359.70 : x
  2. Step 2: Convert to fraction form
    101,210.10/151,572.15 = 54,359.70/x
  3. Step 3: Cross multiply
    101,210.10x = 151,572.15 × 54,359.70
  4. Step 4: Simplify right side
    101,210.10x = 8,239,416,602.36
  5. Step 5: Solve for x
    x = 8,239,416,602.36/101,210.10
  6. Step 6: Final answer
    x = 81,409.04

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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.