Home / 125,190.18-172,762.53-68,601.57

Finding the Fourth Proportional to 125,190.18, 172,762.53 and 68,601.57

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Solution

The fourth proportional to 125,190.18, 172,762.53 and 68,601.57 is: 94,670.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,190.18 : 172,762.53 = 68,601.57 : x
  2. Step 2: Convert to fraction form
    125,190.18/172,762.53 = 68,601.57/x
  3. Step 3: Cross multiply
    125,190.18x = 172,762.53 × 68,601.57
  4. Step 4: Simplify right side
    125,190.18x = 11,851,780,795.17
  5. Step 5: Solve for x
    x = 11,851,780,795.17/125,190.18
  6. Step 6: Final answer
    x = 94,670.21

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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.