Home / 149,543.48-206,369.13-81,559.16

Finding the Fourth Proportional to 149,543.48, 206,369.13 and 81,559.16

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Solution

The fourth proportional to 149,543.48, 206,369.13 and 81,559.16 is: 112,551.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,543.48 : 206,369.13 = 81,559.16 : x
  2. Step 2: Convert to fraction form
    149,543.48/206,369.13 = 81,559.16/x
  3. Step 3: Cross multiply
    149,543.48x = 206,369.13 × 81,559.16
  4. Step 4: Simplify right side
    149,543.48x = 16,831,292,892.73
  5. Step 5: Solve for x
    x = 16,831,292,892.73/149,543.48
  6. Step 6: Final answer
    x = 112,551.17

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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.