Home / 127,280.54-175,502.22-81,278.22

Finding the Fourth Proportional to 127,280.54, 175,502.22 and 81,278.22

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Solution

The fourth proportional to 127,280.54, 175,502.22 and 81,278.22 is: 112,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,280.54 : 175,502.22 = 81,278.22 : x
  2. Step 2: Convert to fraction form
    127,280.54/175,502.22 = 81,278.22/x
  3. Step 3: Cross multiply
    127,280.54x = 175,502.22 × 81,278.22
  4. Step 4: Simplify right side
    127,280.54x = 14,264,508,047.65
  5. Step 5: Solve for x
    x = 14,264,508,047.65/127,280.54
  6. Step 6: Final answer
    x = 112,071.40

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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.