Home / 127,627.20-191,527.20-74,980.80

Finding the Fourth Proportional to 127,627.20, 191,527.20 and 74,980.80

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Solution

The fourth proportional to 127,627.20, 191,527.20 and 74,980.80 is: 112,521.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,627.20 : 191,527.20 = 74,980.80 : x
  2. Step 2: Convert to fraction form
    127,627.20/191,527.20 = 74,980.80/x
  3. Step 3: Cross multiply
    127,627.20x = 191,527.20 × 74,980.80
  4. Step 4: Simplify right side
    127,627.20x = 14,360,862,677.76
  5. Step 5: Solve for x
    x = 14,360,862,677.76/127,627.20
  6. Step 6: Final answer
    x = 112,521.96

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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.