Home / 124,811.52-172,237.35-68,223.30

Finding the Fourth Proportional to 124,811.52, 172,237.35 and 68,223.30

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Solution

The fourth proportional to 124,811.52, 172,237.35 and 68,223.30 is: 94,146.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,811.52 : 172,237.35 = 68,223.30 : x
  2. Step 2: Convert to fraction form
    124,811.52/172,237.35 = 68,223.30/x
  3. Step 3: Cross multiply
    124,811.52x = 172,237.35 × 68,223.30
  4. Step 4: Simplify right side
    124,811.52x = 11,750,600,400.26
  5. Step 5: Solve for x
    x = 11,750,600,400.26/124,811.52
  6. Step 6: Final answer
    x = 94,146.76

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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.