Home / 124,416.32-171,641.30-81,320.94

Finding the Fourth Proportional to 124,416.32, 171,641.30 and 81,320.94

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Solution

The fourth proportional to 124,416.32, 171,641.30 and 81,320.94 is: 112,188.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,416.32 : 171,641.30 = 81,320.94 : x
  2. Step 2: Convert to fraction form
    124,416.32/171,641.30 = 81,320.94/x
  3. Step 3: Cross multiply
    124,416.32x = 171,641.30 × 81,320.94
  4. Step 4: Simplify right side
    124,416.32x = 13,958,031,452.22
  5. Step 5: Solve for x
    x = 13,958,031,452.22/124,416.32
  6. Step 6: Final answer
    x = 112,188.11

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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.