Home / 112,272.80-154,936.28-61,971.76

Finding the Fourth Proportional to 112,272.80, 154,936.28 and 61,971.76

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Solution

The fourth proportional to 112,272.80, 154,936.28 and 61,971.76 is: 85,520.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,272.80 : 154,936.28 = 61,971.76 : x
  2. Step 2: Convert to fraction form
    112,272.80/154,936.28 = 61,971.76/x
  3. Step 3: Cross multiply
    112,272.80x = 154,936.28 × 61,971.76
  4. Step 4: Simplify right side
    112,272.80x = 9,601,673,959.45
  5. Step 5: Solve for x
    x = 9,601,673,959.45/112,272.80
  6. Step 6: Final answer
    x = 85,520.93

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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.