Home / 148,444.19-204,865.94-81,389.15

Finding the Fourth Proportional to 148,444.19, 204,865.94 and 81,389.15

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Solution

The fourth proportional to 148,444.19, 204,865.94 and 81,389.15 is: 112,324.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,444.19 : 204,865.94 = 81,389.15 : x
  2. Step 2: Convert to fraction form
    148,444.19/204,865.94 = 81,389.15/x
  3. Step 3: Cross multiply
    148,444.19x = 204,865.94 × 81,389.15
  4. Step 4: Simplify right side
    148,444.19x = 16,673,864,720.55
  5. Step 5: Solve for x
    x = 16,673,864,720.55/148,444.19
  6. Step 6: Final answer
    x = 112,324.13

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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.