Home / 134,718.12-185,909.88-74,291.28

Finding the Fourth Proportional to 134,718.12, 185,909.88 and 74,291.28

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Solution

The fourth proportional to 134,718.12, 185,909.88 and 74,291.28 is: 102,521.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,718.12 : 185,909.88 = 74,291.28 : x
  2. Step 2: Convert to fraction form
    134,718.12/185,909.88 = 74,291.28/x
  3. Step 3: Cross multiply
    134,718.12x = 185,909.88 × 74,291.28
  4. Step 4: Simplify right side
    134,718.12x = 13,811,482,949.85
  5. Step 5: Solve for x
    x = 13,811,482,949.85/134,718.12
  6. Step 6: Final answer
    x = 102,521.35

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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.