Home / 127,772.16-176,256.18-80,016.18

Finding the Fourth Proportional to 127,772.16, 176,256.18 and 80,016.18

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Solution

The fourth proportional to 127,772.16, 176,256.18 and 80,016.18 is: 110,378.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,772.16 : 176,256.18 = 80,016.18 : x
  2. Step 2: Convert to fraction form
    127,772.16/176,256.18 = 80,016.18/x
  3. Step 3: Cross multiply
    127,772.16x = 176,256.18 × 80,016.18
  4. Step 4: Simplify right side
    127,772.16x = 14,103,346,224.99
  5. Step 5: Solve for x
    x = 14,103,346,224.99/127,772.16
  6. Step 6: Final answer
    x = 110,378.87

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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.