Home / 135,247.32-186,655.25-77,888.52

Finding the Fourth Proportional to 135,247.32, 186,655.25 and 77,888.52

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Solution

The fourth proportional to 135,247.32, 186,655.25 and 77,888.52 is: 107,494.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,247.32 : 186,655.25 = 77,888.52 : x
  2. Step 2: Convert to fraction form
    135,247.32/186,655.25 = 77,888.52/x
  3. Step 3: Cross multiply
    135,247.32x = 186,655.25 × 77,888.52
  4. Step 4: Simplify right side
    135,247.32x = 14,538,301,367.45
  5. Step 5: Solve for x
    x = 14,538,301,367.45/135,247.32
  6. Step 6: Final answer
    x = 107,494.19

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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.