Home / 127,672.32-191,444.40-74,381.52

Finding the Fourth Proportional to 127,672.32, 191,444.40 and 74,381.52

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Solution

The fourth proportional to 127,672.32, 191,444.40 and 74,381.52 is: 111,534.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,672.32 : 191,444.40 = 74,381.52 : x
  2. Step 2: Convert to fraction form
    127,672.32/191,444.40 = 74,381.52/x
  3. Step 3: Cross multiply
    127,672.32x = 191,444.40 × 74,381.52
  4. Step 4: Simplify right side
    127,672.32x = 14,239,925,467.49
  5. Step 5: Solve for x
    x = 14,239,925,467.49/127,672.32
  6. Step 6: Final answer
    x = 111,534.95

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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.