Home / 115,296.20-159,108.75-64,995.20

Finding the Fourth Proportional to 115,296.20, 159,108.75 and 64,995.20

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Solution

The fourth proportional to 115,296.20, 159,108.75 and 64,995.20 is: 89,693.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,296.20 : 159,108.75 = 64,995.20 : x
  2. Step 2: Convert to fraction form
    115,296.20/159,108.75 = 64,995.20/x
  3. Step 3: Cross multiply
    115,296.20x = 159,108.75 × 64,995.20
  4. Step 4: Simplify right side
    115,296.20x = 10,341,304,232.46
  5. Step 5: Solve for x
    x = 10,341,304,232.46/115,296.20
  6. Step 6: Final answer
    x = 89,693.37

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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.