Home / 112,065.28-154,722.08-69,681.44

Finding the Fourth Proportional to 112,065.28, 154,722.08 and 69,681.44

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Solution

The fourth proportional to 112,065.28, 154,722.08 and 69,681.44 is: 96,205.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,065.28 : 154,722.08 = 69,681.44 : x
  2. Step 2: Convert to fraction form
    112,065.28/154,722.08 = 69,681.44/x
  3. Step 3: Cross multiply
    112,065.28x = 154,722.08 × 69,681.44
  4. Step 4: Simplify right side
    112,065.28x = 10,781,257,334.20
  5. Step 5: Solve for x
    x = 10,781,257,334.20/112,065.28
  6. Step 6: Final answer
    x = 96,205.15

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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.