Home / 112,675.35-155,597.36-72,458.96

Finding the Fourth Proportional to 112,675.35, 155,597.36 and 72,458.96

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Solution

The fourth proportional to 112,675.35, 155,597.36 and 72,458.96 is: 100,061.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,675.35 : 155,597.36 = 72,458.96 : x
  2. Step 2: Convert to fraction form
    112,675.35/155,597.36 = 72,458.96/x
  3. Step 3: Cross multiply
    112,675.35x = 155,597.36 × 72,458.96
  4. Step 4: Simplify right side
    112,675.35x = 11,274,421,744.06
  5. Step 5: Solve for x
    x = 11,274,421,744.06/112,675.35
  6. Step 6: Final answer
    x = 100,061.12

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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.