Home / 112,287.88-154,962.66-61,990.12

Finding the Fourth Proportional to 112,287.88, 154,962.66 and 61,990.12

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Solution

The fourth proportional to 112,287.88, 154,962.66 and 61,990.12 is: 85,549.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,287.88 : 154,962.66 = 61,990.12 : x
  2. Step 2: Convert to fraction form
    112,287.88/154,962.66 = 61,990.12/x
  3. Step 3: Cross multiply
    112,287.88x = 154,962.66 × 61,990.12
  4. Step 4: Simplify right side
    112,287.88x = 9,606,153,888.92
  5. Step 5: Solve for x
    x = 9,606,153,888.92/112,287.88
  6. Step 6: Final answer
    x = 85,549.34

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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.