Home / 126,875.20-190,385.70-47,997.40

Finding the Fourth Proportional to 126,875.20, 190,385.70 and 47,997.40

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Solution

The fourth proportional to 126,875.20, 190,385.70 and 47,997.40 is: 72,023.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,875.20 : 190,385.70 = 47,997.40 : x
  2. Step 2: Convert to fraction form
    126,875.20/190,385.70 = 47,997.40/x
  3. Step 3: Cross multiply
    126,875.20x = 190,385.70 × 47,997.40
  4. Step 4: Simplify right side
    126,875.20x = 9,138,018,597.18
  5. Step 5: Solve for x
    x = 9,138,018,597.18/126,875.20
  6. Step 6: Final answer
    x = 72,023.68

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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.