Home / 112,869.30-155,775.50-69,862.59

Finding the Fourth Proportional to 112,869.30, 155,775.50 and 69,862.59

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Solution

The fourth proportional to 112,869.30, 155,775.50 and 69,862.59 is: 96,420.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,869.30 : 155,775.50 = 69,862.59 : x
  2. Step 2: Convert to fraction form
    112,869.30/155,775.50 = 69,862.59/x
  3. Step 3: Cross multiply
    112,869.30x = 155,775.50 × 69,862.59
  4. Step 4: Simplify right side
    112,869.30x = 10,882,879,888.55
  5. Step 5: Solve for x
    x = 10,882,879,888.55/112,869.30
  6. Step 6: Final answer
    x = 96,420.19

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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.