Home / 149,248.70-205,968.24-81,268.30

Finding the Fourth Proportional to 149,248.70, 205,968.24 and 81,268.30

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Solution

The fourth proportional to 149,248.70, 205,968.24 and 81,268.30 is: 112,153.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,248.70 : 205,968.24 = 81,268.30 : x
  2. Step 2: Convert to fraction form
    149,248.70/205,968.24 = 81,268.30/x
  3. Step 3: Cross multiply
    149,248.70x = 205,968.24 × 81,268.30
  4. Step 4: Simplify right side
    149,248.70x = 16,738,688,718.79
  5. Step 5: Solve for x
    x = 16,738,688,718.79/149,248.70
  6. Step 6: Final answer
    x = 112,153.00

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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.