Home / 138,742.93-191,465.24-75,080.73

Finding the Fourth Proportional to 138,742.93, 191,465.24 and 75,080.73

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Solution

The fourth proportional to 138,742.93, 191,465.24 and 75,080.73 is: 103,611.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,742.93 : 191,465.24 = 75,080.73 : x
  2. Step 2: Convert to fraction form
    138,742.93/191,465.24 = 75,080.73/x
  3. Step 3: Cross multiply
    138,742.93x = 191,465.24 × 75,080.73
  4. Step 4: Simplify right side
    138,742.93x = 14,375,349,510.16
  5. Step 5: Solve for x
    x = 14,375,349,510.16/138,742.93
  6. Step 6: Final answer
    x = 103,611.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.