Home / 112,046.36-154,620-62,986.47

Finding the Fourth Proportional to 112,046.36, 154,620 and 62,986.47

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Solution

The fourth proportional to 112,046.36, 154,620 and 62,986.47 is: 86,919.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,046.36 : 154,620 = 62,986.47 : x
  2. Step 2: Convert to fraction form
    112,046.36/154,620 = 62,986.47/x
  3. Step 3: Cross multiply
    112,046.36x = 154,620 × 62,986.47
  4. Step 4: Simplify right side
    112,046.36x = 9,738,967,991.40
  5. Step 5: Solve for x
    x = 9,738,967,991.40/112,046.36
  6. Step 6: Final answer
    x = 86,919.10

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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.