Home / 120,733.40-181,100.10-89,629.40

Finding the Fourth Proportional to 120,733.40, 181,100.10 and 89,629.40

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Solution

The fourth proportional to 120,733.40, 181,100.10 and 89,629.40 is: 134,444.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,733.40 : 181,100.10 = 89,629.40 : x
  2. Step 2: Convert to fraction form
    120,733.40/181,100.10 = 89,629.40/x
  3. Step 3: Cross multiply
    120,733.40x = 181,100.10 × 89,629.40
  4. Step 4: Simplify right side
    120,733.40x = 16,231,893,302.94
  5. Step 5: Solve for x
    x = 16,231,893,302.94/120,733.40
  6. Step 6: Final answer
    x = 134,444.10

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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.