Home / 112,777.29-155,632.59-61,793.28

Finding the Fourth Proportional to 112,777.29, 155,632.59 and 61,793.28

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Solution

The fourth proportional to 112,777.29, 155,632.59 and 61,793.28 is: 85,274.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,777.29 : 155,632.59 = 61,793.28 : x
  2. Step 2: Convert to fraction form
    112,777.29/155,632.59 = 61,793.28/x
  3. Step 3: Cross multiply
    112,777.29x = 155,632.59 × 61,793.28
  4. Step 4: Simplify right side
    112,777.29x = 9,617,048,211.00
  5. Step 5: Solve for x
    x = 9,617,048,211.00/112,777.29
  6. Step 6: Final answer
    x = 85,274.69

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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.