Home / 126,398.56-174,485.76-75,428.96

Finding the Fourth Proportional to 126,398.56, 174,485.76 and 75,428.96

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Solution

The fourth proportional to 126,398.56, 174,485.76 and 75,428.96 is: 104,125.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,398.56 : 174,485.76 = 75,428.96 : x
  2. Step 2: Convert to fraction form
    126,398.56/174,485.76 = 75,428.96/x
  3. Step 3: Cross multiply
    126,398.56x = 174,485.76 × 75,428.96
  4. Step 4: Simplify right side
    126,398.56x = 13,161,279,411.61
  5. Step 5: Solve for x
    x = 13,161,279,411.61/126,398.56
  6. Step 6: Final answer
    x = 104,125.23

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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.