Home / 125,225.95-172,811.43-67,866.91

Finding the Fourth Proportional to 125,225.95, 172,811.43 and 67,866.91

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Solution

The fourth proportional to 125,225.95, 172,811.43 and 67,866.91 is: 93,656.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,225.95 : 172,811.43 = 67,866.91 : x
  2. Step 2: Convert to fraction form
    125,225.95/172,811.43 = 67,866.91/x
  3. Step 3: Cross multiply
    125,225.95x = 172,811.43 × 67,866.91
  4. Step 4: Simplify right side
    125,225.95x = 11,728,177,766.78
  5. Step 5: Solve for x
    x = 11,728,177,766.78/125,225.95
  6. Step 6: Final answer
    x = 93,656.13

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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.