Home / 112,750.12-169,129.28-37,872.72

Finding the Fourth Proportional to 112,750.12, 169,129.28 and 37,872.72

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Solution

The fourth proportional to 112,750.12, 169,129.28 and 37,872.72 is: 56,810.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,750.12 : 169,129.28 = 37,872.72 : x
  2. Step 2: Convert to fraction form
    112,750.12/169,129.28 = 37,872.72/x
  3. Step 3: Cross multiply
    112,750.12x = 169,129.28 × 37,872.72
  4. Step 4: Simplify right side
    112,750.12x = 6,405,385,865.24
  5. Step 5: Solve for x
    x = 6,405,385,865.24/112,750.12
  6. Step 6: Final answer
    x = 56,810.46

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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.