Home / 140,149.80-193,399.62-76,487.08

Finding the Fourth Proportional to 140,149.80, 193,399.62 and 76,487.08

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Solution

The fourth proportional to 140,149.80, 193,399.62 and 76,487.08 is: 105,548.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,149.80 : 193,399.62 = 76,487.08 : x
  2. Step 2: Convert to fraction form
    140,149.80/193,399.62 = 76,487.08/x
  3. Step 3: Cross multiply
    140,149.80x = 193,399.62 × 76,487.08
  4. Step 4: Simplify right side
    140,149.80x = 14,792,572,206.91
  5. Step 5: Solve for x
    x = 14,792,572,206.91/140,149.80
  6. Step 6: Final answer
    x = 105,548.29

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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.