Home / 115,116.40-158,858.24-64,129.06

Finding the Fourth Proportional to 115,116.40, 158,858.24 and 64,129.06

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Solution

The fourth proportional to 115,116.40, 158,858.24 and 64,129.06 is: 88,496.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,116.40 : 158,858.24 = 64,129.06 : x
  2. Step 2: Convert to fraction form
    115,116.40/158,858.24 = 64,129.06/x
  3. Step 3: Cross multiply
    115,116.40x = 158,858.24 × 64,129.06
  4. Step 4: Simplify right side
    115,116.40x = 10,187,428,886.66
  5. Step 5: Solve for x
    x = 10,187,428,886.66/115,116.40
  6. Step 6: Final answer
    x = 88,496.77

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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.