Home / 121,025.12-181,513.11-76,026.38

Finding the Fourth Proportional to 121,025.12, 181,513.11 and 76,026.38

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Solution

The fourth proportional to 121,025.12, 181,513.11 and 76,026.38 is: 114,024.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,025.12 : 181,513.11 = 76,026.38 : x
  2. Step 2: Convert to fraction form
    121,025.12/181,513.11 = 76,026.38/x
  3. Step 3: Cross multiply
    121,025.12x = 181,513.11 × 76,026.38
  4. Step 4: Simplify right side
    121,025.12x = 13,799,784,675.84
  5. Step 5: Solve for x
    x = 13,799,784,675.84/121,025.12
  6. Step 6: Final answer
    x = 114,024.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.