Home / 115,722.18-159,689.07-64,726.08

Finding the Fourth Proportional to 115,722.18, 159,689.07 and 64,726.08

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Solution

The fourth proportional to 115,722.18, 159,689.07 and 64,726.08 is: 89,317.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,722.18 : 159,689.07 = 64,726.08 : x
  2. Step 2: Convert to fraction form
    115,722.18/159,689.07 = 64,726.08/x
  3. Step 3: Cross multiply
    115,722.18x = 159,689.07 × 64,726.08
  4. Step 4: Simplify right side
    115,722.18x = 10,336,047,519.95
  5. Step 5: Solve for x
    x = 10,336,047,519.95/115,722.18
  6. Step 6: Final answer
    x = 89,317.77

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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.