Home / 138,587.10-191,291.67-88,302.30

Finding the Fourth Proportional to 138,587.10, 191,291.67 and 88,302.30

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Solution

The fourth proportional to 138,587.10, 191,291.67 and 88,302.30 is: 121,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,587.10 : 191,291.67 = 88,302.30 : x
  2. Step 2: Convert to fraction form
    138,587.10/191,291.67 = 88,302.30/x
  3. Step 3: Cross multiply
    138,587.10x = 191,291.67 × 88,302.30
  4. Step 4: Simplify right side
    138,587.10x = 16,891,494,431.84
  5. Step 5: Solve for x
    x = 16,891,494,431.84/138,587.10
  6. Step 6: Final answer
    x = 121,883.60

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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.