Home / 112,869.05-155,775.15-69,862.34

Finding the Fourth Proportional to 112,869.05, 155,775.15 and 69,862.34

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Solution

The fourth proportional to 112,869.05, 155,775.15 and 69,862.34 is: 96,419.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,869.05 : 155,775.15 = 69,862.34 : x
  2. Step 2: Convert to fraction form
    112,869.05/155,775.15 = 69,862.34/x
  3. Step 3: Cross multiply
    112,869.05x = 155,775.15 × 69,862.34
  4. Step 4: Simplify right side
    112,869.05x = 10,882,815,713.98
  5. Step 5: Solve for x
    x = 10,882,815,713.98/112,869.05
  6. Step 6: Final answer
    x = 96,419.84

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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.