Home / 126,279.32-189,444.72-51,398.84

Finding the Fourth Proportional to 126,279.32, 189,444.72 and 51,398.84

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Solution

The fourth proportional to 126,279.32, 189,444.72 and 51,398.84 is: 77,108.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,279.32 : 189,444.72 = 51,398.84 : x
  2. Step 2: Convert to fraction form
    126,279.32/189,444.72 = 51,398.84/x
  3. Step 3: Cross multiply
    126,279.32x = 189,444.72 × 51,398.84
  4. Step 4: Simplify right side
    126,279.32x = 9,737,238,852.12
  5. Step 5: Solve for x
    x = 9,737,238,852.12/126,279.32
  6. Step 6: Final answer
    x = 77,108.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.