Home / 125,015.48-172,522.05-68,426.86

Finding the Fourth Proportional to 125,015.48, 172,522.05 and 68,426.86

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Solution

The fourth proportional to 125,015.48, 172,522.05 and 68,426.86 is: 94,429.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,015.48 : 172,522.05 = 68,426.86 : x
  2. Step 2: Convert to fraction form
    125,015.48/172,522.05 = 68,426.86/x
  3. Step 3: Cross multiply
    125,015.48x = 172,522.05 × 68,426.86
  4. Step 4: Simplify right side
    125,015.48x = 11,805,142,182.74
  5. Step 5: Solve for x
    x = 11,805,142,182.74/125,015.48
  6. Step 6: Final answer
    x = 94,429.44

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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.