Home / 115,322.76-159,118.38-69,999.66

Finding the Fourth Proportional to 115,322.76, 159,118.38 and 69,999.66

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Solution

The fourth proportional to 115,322.76, 159,118.38 and 69,999.66 is: 96,583.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,322.76 : 159,118.38 = 69,999.66 : x
  2. Step 2: Convert to fraction form
    115,322.76/159,118.38 = 69,999.66/x
  3. Step 3: Cross multiply
    115,322.76x = 159,118.38 × 69,999.66
  4. Step 4: Simplify right side
    115,322.76x = 11,138,232,499.75
  5. Step 5: Solve for x
    x = 11,138,232,499.75/115,322.76
  6. Step 6: Final answer
    x = 96,583.12

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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.