Home / 127,632.79-176,130.17-79,912.45

Finding the Fourth Proportional to 127,632.79, 176,130.17 and 79,912.45

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Solution

The fourth proportional to 127,632.79, 176,130.17 and 79,912.45 is: 110,277.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,632.79 : 176,130.17 = 79,912.45 : x
  2. Step 2: Convert to fraction form
    127,632.79/176,130.17 = 79,912.45/x
  3. Step 3: Cross multiply
    127,632.79x = 176,130.17 × 79,912.45
  4. Step 4: Simplify right side
    127,632.79x = 14,074,993,004.05
  5. Step 5: Solve for x
    x = 14,074,993,004.05/127,632.79
  6. Step 6: Final answer
    x = 110,277.25

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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.