Home / 112,144.80-154,760.08-61,843.36

Finding the Fourth Proportional to 112,144.80, 154,760.08 and 61,843.36

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Solution

The fourth proportional to 112,144.80, 154,760.08 and 61,843.36 is: 85,343.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,144.80 : 154,760.08 = 61,843.36 : x
  2. Step 2: Convert to fraction form
    112,144.80/154,760.08 = 61,843.36/x
  3. Step 3: Cross multiply
    112,144.80x = 154,760.08 × 61,843.36
  4. Step 4: Simplify right side
    112,144.80x = 9,570,883,341.07
  5. Step 5: Solve for x
    x = 9,570,883,341.07/112,144.80
  6. Step 6: Final answer
    x = 85,343.98

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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.