Home / 115,726.86-159,695.53-64,730.75

Finding the Fourth Proportional to 115,726.86, 159,695.53 and 64,730.75

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Solution

The fourth proportional to 115,726.86, 159,695.53 and 64,730.75 is: 89,324.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,726.86 : 159,695.53 = 64,730.75 : x
  2. Step 2: Convert to fraction form
    115,726.86/159,695.53 = 64,730.75/x
  3. Step 3: Cross multiply
    115,726.86x = 159,695.53 × 64,730.75
  4. Step 4: Simplify right side
    115,726.86x = 10,337,210,468.24
  5. Step 5: Solve for x
    x = 10,337,210,468.24/115,726.86
  6. Step 6: Final answer
    x = 89,324.21

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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.