Home / 112,782.27-155,639.53-61,796.94

Finding the Fourth Proportional to 112,782.27, 155,639.53 and 61,796.94

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Solution

The fourth proportional to 112,782.27, 155,639.53 and 61,796.94 is: 85,279.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,782.27 : 155,639.53 = 61,796.94 : x
  2. Step 2: Convert to fraction form
    112,782.27/155,639.53 = 61,796.94/x
  3. Step 3: Cross multiply
    112,782.27x = 155,639.53 × 61,796.94
  4. Step 4: Simplify right side
    112,782.27x = 9,618,046,697.04
  5. Step 5: Solve for x
    x = 9,618,046,697.04/112,782.27
  6. Step 6: Final answer
    x = 85,279.78

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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.