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Finding the Fourth Proportional to 75,124.40, 112,467.90 and 72,937.40

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Solution

The fourth proportional to 75,124.40, 112,467.90 and 72,937.40 is: 109,193.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,124.40 : 112,467.90 = 72,937.40 : x
  2. Step 2: Convert to fraction form
    75,124.40/112,467.90 = 72,937.40/x
  3. Step 3: Cross multiply
    75,124.40x = 112,467.90 × 72,937.40
  4. Step 4: Simplify right side
    75,124.40x = 8,203,116,209.46
  5. Step 5: Solve for x
    x = 8,203,116,209.46/75,124.40
  6. Step 6: Final answer
    x = 109,193.77

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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.