Home / 99,685.33-148,892.49-90,183.13

Finding the Fourth Proportional to 99,685.33, 148,892.49 and 90,183.13

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Solution

The fourth proportional to 99,685.33, 148,892.49 and 90,183.13 is: 134,699.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,685.33 : 148,892.49 = 90,183.13 : x
  2. Step 2: Convert to fraction form
    99,685.33/148,892.49 = 90,183.13/x
  3. Step 3: Cross multiply
    99,685.33x = 148,892.49 × 90,183.13
  4. Step 4: Simplify right side
    99,685.33x = 13,427,590,409.46
  5. Step 5: Solve for x
    x = 13,427,590,409.46/99,685.33
  6. Step 6: Final answer
    x = 134,699.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.