Home / 112,171.96-154,642.26-89,587

Finding the Fourth Proportional to 112,171.96, 154,642.26 and 89,587

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Solution

The fourth proportional to 112,171.96, 154,642.26 and 89,587 is: 123,506.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,171.96 : 154,642.26 = 89,587 : x
  2. Step 2: Convert to fraction form
    112,171.96/154,642.26 = 89,587/x
  3. Step 3: Cross multiply
    112,171.96x = 154,642.26 × 89,587
  4. Step 4: Simplify right side
    112,171.96x = 13,853,936,146.62
  5. Step 5: Solve for x
    x = 13,853,936,146.62/112,171.96
  6. Step 6: Final answer
    x = 123,506.23

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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.