Home / 149,652.29-206,518.40-81,670.43

Finding the Fourth Proportional to 149,652.29, 206,518.40 and 81,670.43

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Solution

The fourth proportional to 149,652.29, 206,518.40 and 81,670.43 is: 112,704.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,652.29 : 206,518.40 = 81,670.43 : x
  2. Step 2: Convert to fraction form
    149,652.29/206,518.40 = 81,670.43/x
  3. Step 3: Cross multiply
    149,652.29x = 206,518.40 × 81,670.43
  4. Step 4: Simplify right side
    149,652.29x = 16,866,445,089.97
  5. Step 5: Solve for x
    x = 16,866,445,089.97/149,652.29
  6. Step 6: Final answer
    x = 112,704.22

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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.