Home / 134,587.12-185,689.12-77,987.56

Finding the Fourth Proportional to 134,587.12, 185,689.12 and 77,987.56

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Solution

The fourth proportional to 134,587.12, 185,689.12 and 77,987.56 is: 107,599.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,587.12 : 185,689.12 = 77,987.56 : x
  2. Step 2: Convert to fraction form
    134,587.12/185,689.12 = 77,987.56/x
  3. Step 3: Cross multiply
    134,587.12x = 185,689.12 × 77,987.56
  4. Step 4: Simplify right side
    134,587.12x = 14,481,441,387.35
  5. Step 5: Solve for x
    x = 14,481,441,387.35/134,587.12
  6. Step 6: Final answer
    x = 107,599.01

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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.