Home / 134,782.32-185,996.55-74,358.72

Finding the Fourth Proportional to 134,782.32, 185,996.55 and 74,358.72

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Solution

The fourth proportional to 134,782.32, 185,996.55 and 74,358.72 is: 102,613.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,782.32 : 185,996.55 = 74,358.72 : x
  2. Step 2: Convert to fraction form
    134,782.32/185,996.55 = 74,358.72/x
  3. Step 3: Cross multiply
    134,782.32x = 185,996.55 × 74,358.72
  4. Step 4: Simplify right side
    134,782.32x = 13,830,465,382.42
  5. Step 5: Solve for x
    x = 13,830,465,382.42/134,782.32
  6. Step 6: Final answer
    x = 102,613.35

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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.