Home / 112,299.36-154,972.08-61,998.72

Finding the Fourth Proportional to 112,299.36, 154,972.08 and 61,998.72

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Solution

The fourth proportional to 112,299.36, 154,972.08 and 61,998.72 is: 85,557.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,299.36 : 154,972.08 = 61,998.72 : x
  2. Step 2: Convert to fraction form
    112,299.36/154,972.08 = 61,998.72/x
  3. Step 3: Cross multiply
    112,299.36x = 154,972.08 × 61,998.72
  4. Step 4: Simplify right side
    112,299.36x = 9,608,070,595.74
  5. Step 5: Solve for x
    x = 9,608,070,595.74/112,299.36
  6. Step 6: Final answer
    x = 85,557.66

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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.