Home / 112,926.97-155,838.15-61,938.65

Finding the Fourth Proportional to 112,926.97, 155,838.15 and 61,938.65

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Solution

The fourth proportional to 112,926.97, 155,838.15 and 61,938.65 is: 85,474.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,926.97 : 155,838.15 = 61,938.65 : x
  2. Step 2: Convert to fraction form
    112,926.97/155,838.15 = 61,938.65/x
  3. Step 3: Cross multiply
    112,926.97x = 155,838.15 × 61,938.65
  4. Step 4: Simplify right side
    112,926.97x = 9,652,404,629.50
  5. Step 5: Solve for x
    x = 9,652,404,629.50/112,926.97
  6. Step 6: Final answer
    x = 85,474.75

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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.