Home / 149,795.60-206,708.76-81,798.73

Finding the Fourth Proportional to 149,795.60, 206,708.76 and 81,798.73

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Solution

The fourth proportional to 149,795.60, 206,708.76 and 81,798.73 is: 112,877.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,795.60 : 206,708.76 = 81,798.73 : x
  2. Step 2: Convert to fraction form
    149,795.60/206,708.76 = 81,798.73/x
  3. Step 3: Cross multiply
    149,795.60x = 206,708.76 × 81,798.73
  4. Step 4: Simplify right side
    149,795.60x = 16,908,513,531.10
  5. Step 5: Solve for x
    x = 16,908,513,531.10/149,795.60
  6. Step 6: Final answer
    x = 112,877.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.