Home / 112,512.03-155,193.44-72,161.88

Finding the Fourth Proportional to 112,512.03, 155,193.44 and 72,161.88

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Solution

The fourth proportional to 112,512.03, 155,193.44 and 72,161.88 is: 99,536.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,512.03 : 155,193.44 = 72,161.88 : x
  2. Step 2: Convert to fraction form
    112,512.03/155,193.44 = 72,161.88/x
  3. Step 3: Cross multiply
    112,512.03x = 155,193.44 × 72,161.88
  4. Step 4: Simplify right side
    112,512.03x = 11,199,050,394.07
  5. Step 5: Solve for x
    x = 11,199,050,394.07/112,512.03
  6. Step 6: Final answer
    x = 99,536.47

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1.5x scale

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.