Home / 128,823.06-177,685.88-124,487.94

Finding the Fourth Proportional to 128,823.06, 177,685.88 and 124,487.94

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Solution

The fourth proportional to 128,823.06, 177,685.88 and 124,487.94 is: 171,706.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,823.06 : 177,685.88 = 124,487.94 : x
  2. Step 2: Convert to fraction form
    128,823.06/177,685.88 = 124,487.94/x
  3. Step 3: Cross multiply
    128,823.06x = 177,685.88 × 124,487.94
  4. Step 4: Simplify right side
    128,823.06x = 22,119,748,545.85
  5. Step 5: Solve for x
    x = 22,119,748,545.85/128,823.06
  6. Step 6: Final answer
    x = 171,706.44

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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.