Home / 115,275.84-159,080.37-64,288.62

Finding the Fourth Proportional to 115,275.84, 159,080.37 and 64,288.62

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Solution

The fourth proportional to 115,275.84, 159,080.37 and 64,288.62 is: 88,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,275.84 : 159,080.37 = 64,288.62 : x
  2. Step 2: Convert to fraction form
    115,275.84/159,080.37 = 64,288.62/x
  3. Step 3: Cross multiply
    115,275.84x = 159,080.37 × 64,288.62
  4. Step 4: Simplify right side
    115,275.84x = 10,227,057,456.39
  5. Step 5: Solve for x
    x = 10,227,057,456.39/115,275.84
  6. Step 6: Final answer
    x = 88,718.13

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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.