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Finding the Fourth Proportional to 101,809.42, 152,558.26 and 42,612.86

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Solution

The fourth proportional to 101,809.42, 152,558.26 and 42,612.86 is: 63,854.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,809.42 : 152,558.26 = 42,612.86 : x
  2. Step 2: Convert to fraction form
    101,809.42/152,558.26 = 42,612.86/x
  3. Step 3: Cross multiply
    101,809.42x = 152,558.26 × 42,612.86
  4. Step 4: Simplify right side
    101,809.42x = 6,500,943,775.22
  5. Step 5: Solve for x
    x = 6,500,943,775.22/101,809.42
  6. Step 6: Final answer
    x = 63,854.05

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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.