Home / 138,786.74-191,526.18-75,124.52

Finding the Fourth Proportional to 138,786.74, 191,526.18 and 75,124.52

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Solution

The fourth proportional to 138,786.74, 191,526.18 and 75,124.52 is: 103,672.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,786.74 : 191,526.18 = 75,124.52 : x
  2. Step 2: Convert to fraction form
    138,786.74/191,526.18 = 75,124.52/x
  3. Step 3: Cross multiply
    138,786.74x = 191,526.18 × 75,124.52
  4. Step 4: Simplify right side
    138,786.74x = 14,388,312,339.93
  5. Step 5: Solve for x
    x = 14,388,312,339.93/138,786.74
  6. Step 6: Final answer
    x = 103,672.10

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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.