Home / 107,902.23-148,999.10-67,685.12

Finding the Fourth Proportional to 107,902.23, 148,999.10 and 67,685.12

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Solution

The fourth proportional to 107,902.23, 148,999.10 and 67,685.12 is: 93,464.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,902.23 : 148,999.10 = 67,685.12 : x
  2. Step 2: Convert to fraction form
    107,902.23/148,999.10 = 67,685.12/x
  3. Step 3: Cross multiply
    107,902.23x = 148,999.10 × 67,685.12
  4. Step 4: Simplify right side
    107,902.23x = 10,085,021,438.72
  5. Step 5: Solve for x
    x = 10,085,021,438.72/107,902.23
  6. Step 6: Final answer
    x = 93,464.44

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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.