Home / 103,536.40-142,708.15-73,282.90

Finding the Fourth Proportional to 103,536.40, 142,708.15 and 73,282.90

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Solution

The fourth proportional to 103,536.40, 142,708.15 and 73,282.90 is: 101,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,536.40 : 142,708.15 = 73,282.90 : x
  2. Step 2: Convert to fraction form
    103,536.40/142,708.15 = 73,282.90/x
  3. Step 3: Cross multiply
    103,536.40x = 142,708.15 × 73,282.90
  4. Step 4: Simplify right side
    103,536.40x = 10,458,067,085.64
  5. Step 5: Solve for x
    x = 10,458,067,085.64/103,536.40
  6. Step 6: Final answer
    x = 101,008.60

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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.