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Finding the Fourth Proportional to 134,290.40, 185,330.40 and 80,574.08

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Solution

The fourth proportional to 134,290.40, 185,330.40 and 80,574.08 is: 111,198.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,290.40 : 185,330.40 = 80,574.08 : x
  2. Step 2: Convert to fraction form
    134,290.40/185,330.40 = 80,574.08/x
  3. Step 3: Cross multiply
    134,290.40x = 185,330.40 × 80,574.08
  4. Step 4: Simplify right side
    134,290.40x = 14,932,826,476.03
  5. Step 5: Solve for x
    x = 14,932,826,476.03/134,290.40
  6. Step 6: Final answer
    x = 111,198.02

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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.