Home / 125,123.50-172,670.52-68,535.10

Finding the Fourth Proportional to 125,123.50, 172,670.52 and 68,535.10

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Solution

The fourth proportional to 125,123.50, 172,670.52 and 68,535.10 is: 94,578.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,123.50 : 172,670.52 = 68,535.10 : x
  2. Step 2: Convert to fraction form
    125,123.50/172,670.52 = 68,535.10/x
  3. Step 3: Cross multiply
    125,123.50x = 172,670.52 × 68,535.10
  4. Step 4: Simplify right side
    125,123.50x = 11,833,991,355.25
  5. Step 5: Solve for x
    x = 11,833,991,355.25/125,123.50
  6. Step 6: Final answer
    x = 94,578.49

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1.5x scale

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.