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Finding the Fourth Proportional to 101,898.86, 152,799.12 and 42,718.64

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Solution

The fourth proportional to 101,898.86, 152,799.12 and 42,718.64 is: 64,057.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,898.86 : 152,799.12 = 42,718.64 : x
  2. Step 2: Convert to fraction form
    101,898.86/152,799.12 = 42,718.64/x
  3. Step 3: Cross multiply
    101,898.86x = 152,799.12 × 42,718.64
  4. Step 4: Simplify right side
    101,898.86x = 6,527,369,835.60
  5. Step 5: Solve for x
    x = 6,527,369,835.60/101,898.86
  6. Step 6: Final answer
    x = 64,057.34

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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.