Home / 115,275.96-159,080.15-64,288.08

Finding the Fourth Proportional to 115,275.96, 159,080.15 and 64,288.08

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Solution

The fourth proportional to 115,275.96, 159,080.15 and 64,288.08 is: 88,717.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,275.96 : 159,080.15 = 64,288.08 : x
  2. Step 2: Convert to fraction form
    115,275.96/159,080.15 = 64,288.08/x
  3. Step 3: Cross multiply
    115,275.96x = 159,080.15 × 64,288.08
  4. Step 4: Simplify right side
    115,275.96x = 10,226,957,570.33
  5. Step 5: Solve for x
    x = 10,226,957,570.33/115,275.96
  6. Step 6: Final answer
    x = 88,717.18

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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.