Home / 127,515.60-191,346.30-48,686.40

Finding the Fourth Proportional to 127,515.60, 191,346.30 and 48,686.40

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Solution

The fourth proportional to 127,515.60, 191,346.30 and 48,686.40 is: 73,057.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,515.60 : 191,346.30 = 48,686.40 : x
  2. Step 2: Convert to fraction form
    127,515.60/191,346.30 = 48,686.40/x
  3. Step 3: Cross multiply
    127,515.60x = 191,346.30 × 48,686.40
  4. Step 4: Simplify right side
    127,515.60x = 9,315,962,500.32
  5. Step 5: Solve for x
    x = 9,315,962,500.32/127,515.60
  6. Step 6: Final answer
    x = 73,057.43

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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.