Home / 112,788.24-155,577.36-72,554.48

Finding the Fourth Proportional to 112,788.24, 155,577.36 and 72,554.48

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Solution

The fourth proportional to 112,788.24, 155,577.36 and 72,554.48 is: 100,079.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,788.24 : 155,577.36 = 72,554.48 : x
  2. Step 2: Convert to fraction form
    112,788.24/155,577.36 = 72,554.48/x
  3. Step 3: Cross multiply
    112,788.24x = 155,577.36 × 72,554.48
  4. Step 4: Simplify right side
    112,788.24x = 11,287,834,454.57
  5. Step 5: Solve for x
    x = 11,287,834,454.57/112,788.24
  6. Step 6: Final answer
    x = 100,079.89

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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.