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Finding the Fourth Proportional to 101,909.79, 152,806.37 and 42,695.55

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Solution

The fourth proportional to 101,909.79, 152,806.37 and 42,695.55 is: 64,018.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,909.79 : 152,806.37 = 42,695.55 : x
  2. Step 2: Convert to fraction form
    101,909.79/152,806.37 = 42,695.55/x
  3. Step 3: Cross multiply
    101,909.79x = 152,806.37 × 42,695.55
  4. Step 4: Simplify right side
    101,909.79x = 6,524,151,797.18
  5. Step 5: Solve for x
    x = 6,524,151,797.18/101,909.79
  6. Step 6: Final answer
    x = 64,018.89

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1.5x scale

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.