Home / 112,261.28-154,918.20-61,272.32

Finding the Fourth Proportional to 112,261.28, 154,918.20 and 61,272.32

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Solution

The fourth proportional to 112,261.28, 154,918.20 and 61,272.32 is: 84,554.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,261.28 : 154,918.20 = 61,272.32 : x
  2. Step 2: Convert to fraction form
    112,261.28/154,918.20 = 61,272.32/x
  3. Step 3: Cross multiply
    112,261.28x = 154,918.20 × 61,272.32
  4. Step 4: Simplify right side
    112,261.28x = 9,492,197,524.22
  5. Step 5: Solve for x
    x = 9,492,197,524.22/112,261.28
  6. Step 6: Final answer
    x = 84,554.51

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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.