Home / 115,340.88-159,146.28-70,042.80

Finding the Fourth Proportional to 115,340.88, 159,146.28 and 70,042.80

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Solution

The fourth proportional to 115,340.88, 159,146.28 and 70,042.80 is: 96,644.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,340.88 : 159,146.28 = 70,042.80 : x
  2. Step 2: Convert to fraction form
    115,340.88/159,146.28 = 70,042.80/x
  3. Step 3: Cross multiply
    115,340.88x = 159,146.28 × 70,042.80
  4. Step 4: Simplify right side
    115,340.88x = 11,147,051,060.78
  5. Step 5: Solve for x
    x = 11,147,051,060.78/115,340.88
  6. Step 6: Final answer
    x = 96,644.41

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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.