Home / 121,366.10-182,110.55-81,840.13

Finding the Fourth Proportional to 121,366.10, 182,110.55 and 81,840.13

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Solution

The fourth proportional to 121,366.10, 182,110.55 and 81,840.13 is: 122,801.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,366.10 : 182,110.55 = 81,840.13 : x
  2. Step 2: Convert to fraction form
    121,366.10/182,110.55 = 81,840.13/x
  3. Step 3: Cross multiply
    121,366.10x = 182,110.55 × 81,840.13
  4. Step 4: Simplify right side
    121,366.10x = 14,903,950,221.89
  5. Step 5: Solve for x
    x = 14,903,950,221.89/121,366.10
  6. Step 6: Final answer
    x = 122,801.59

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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.