Home / 122,901.84-169,617.24-75,186.90

Finding the Fourth Proportional to 122,901.84, 169,617.24 and 75,186.90

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Solution

The fourth proportional to 122,901.84, 169,617.24 and 75,186.90 is: 103,765.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,901.84 : 169,617.24 = 75,186.90 : x
  2. Step 2: Convert to fraction form
    122,901.84/169,617.24 = 75,186.90/x
  3. Step 3: Cross multiply
    122,901.84x = 169,617.24 × 75,186.90
  4. Step 4: Simplify right side
    122,901.84x = 12,752,994,462.16
  5. Step 5: Solve for x
    x = 12,752,994,462.16/122,901.84
  6. Step 6: Final answer
    x = 103,765.69

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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.