Home / 124,138.50-171,309.69-67,548.90

Finding the Fourth Proportional to 124,138.50, 171,309.69 and 67,548.90

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Solution

The fourth proportional to 124,138.50, 171,309.69 and 67,548.90 is: 93,216.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,138.50 : 171,309.69 = 67,548.90 : x
  2. Step 2: Convert to fraction form
    124,138.50/171,309.69 = 67,548.90/x
  3. Step 3: Cross multiply
    124,138.50x = 171,309.69 × 67,548.90
  4. Step 4: Simplify right side
    124,138.50x = 11,571,781,118.84
  5. Step 5: Solve for x
    x = 11,571,781,118.84/124,138.50
  6. Step 6: Final answer
    x = 93,216.70

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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.