Home / 115,517.56-159,366.76-70,188.20

Finding the Fourth Proportional to 115,517.56, 159,366.76 and 70,188.20

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Solution

The fourth proportional to 115,517.56, 159,366.76 and 70,188.20 is: 96,830.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,517.56 : 159,366.76 = 70,188.20 : x
  2. Step 2: Convert to fraction form
    115,517.56/159,366.76 = 70,188.20/x
  3. Step 3: Cross multiply
    115,517.56x = 159,366.76 × 70,188.20
  4. Step 4: Simplify right side
    115,517.56x = 11,185,666,024.23
  5. Step 5: Solve for x
    x = 11,185,666,024.23/115,517.56
  6. Step 6: Final answer
    x = 96,830.87

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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.