Home / 126,981.78-175,225.40-69,611.92

Finding the Fourth Proportional to 126,981.78, 175,225.40 and 69,611.92

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Solution

The fourth proportional to 126,981.78, 175,225.40 and 69,611.92 is: 96,059.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,981.78 : 175,225.40 = 69,611.92 : x
  2. Step 2: Convert to fraction form
    126,981.78/175,225.40 = 69,611.92/x
  3. Step 3: Cross multiply
    126,981.78x = 175,225.40 × 69,611.92
  4. Step 4: Simplify right side
    126,981.78x = 12,197,776,526.77
  5. Step 5: Solve for x
    x = 12,197,776,526.77/126,981.78
  6. Step 6: Final answer
    x = 96,059.27

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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.