Home / 132,931.44-199,398.40-39,437.20

Finding the Fourth Proportional to 132,931.44, 199,398.40 and 39,437.20

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Solution

The fourth proportional to 132,931.44, 199,398.40 and 39,437.20 is: 59,156.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,931.44 : 199,398.40 = 39,437.20 : x
  2. Step 2: Convert to fraction form
    132,931.44/199,398.40 = 39,437.20/x
  3. Step 3: Cross multiply
    132,931.44x = 199,398.40 × 39,437.20
  4. Step 4: Simplify right side
    132,931.44x = 7,863,714,580.48
  5. Step 5: Solve for x
    x = 7,863,714,580.48/132,931.44
  6. Step 6: Final answer
    x = 59,156.17

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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.