Home / 121,454.86-183,107.16-112,892.76

Finding the Fourth Proportional to 121,454.86, 183,107.16 and 112,892.76

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Solution

The fourth proportional to 121,454.86, 183,107.16 and 112,892.76 is: 170,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,454.86 : 183,107.16 = 112,892.76 : x
  2. Step 2: Convert to fraction form
    121,454.86/183,107.16 = 112,892.76/x
  3. Step 3: Cross multiply
    121,454.86x = 183,107.16 × 112,892.76
  4. Step 4: Simplify right side
    121,454.86x = 20,671,471,752.63
  5. Step 5: Solve for x
    x = 20,671,471,752.63/121,454.86
  6. Step 6: Final answer
    x = 170,198.80

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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.