Home / 121,487.40-183,156.18-112,925.22

Finding the Fourth Proportional to 121,487.40, 183,156.18 and 112,925.22

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Solution

The fourth proportional to 121,487.40, 183,156.18 and 112,925.22 is: 170,247.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,487.40 : 183,156.18 = 112,925.22 : x
  2. Step 2: Convert to fraction form
    121,487.40/183,156.18 = 112,925.22/x
  3. Step 3: Cross multiply
    121,487.40x = 183,156.18 × 112,925.22
  4. Step 4: Simplify right side
    121,487.40x = 20,682,951,920.86
  5. Step 5: Solve for x
    x = 20,682,951,920.86/121,487.40
  6. Step 6: Final answer
    x = 170,247.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.