Home / 115,125.30-158,872.77-64,824.66

Finding the Fourth Proportional to 115,125.30, 158,872.77 and 64,824.66

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Solution

The fourth proportional to 115,125.30, 158,872.77 and 64,824.66 is: 89,457.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,125.30 : 158,872.77 = 64,824.66 : x
  2. Step 2: Convert to fraction form
    115,125.30/158,872.77 = 64,824.66/x
  3. Step 3: Cross multiply
    115,125.30x = 158,872.77 × 64,824.66
  4. Step 4: Simplify right side
    115,125.30x = 10,298,873,298.51
  5. Step 5: Solve for x
    x = 10,298,873,298.51/115,125.30
  6. Step 6: Final answer
    x = 89,457.95

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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.