Home / 140,014.71-209,129.31-126,667.08

Finding the Fourth Proportional to 140,014.71, 209,129.31 and 126,667.08

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Solution

The fourth proportional to 140,014.71, 209,129.31 and 126,667.08 is: 189,192.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,014.71 : 209,129.31 = 126,667.08 : x
  2. Step 2: Convert to fraction form
    140,014.71/209,129.31 = 126,667.08/x
  3. Step 3: Cross multiply
    140,014.71x = 209,129.31 × 126,667.08
  4. Step 4: Simplify right side
    140,014.71x = 26,489,799,040.11
  5. Step 5: Solve for x
    x = 26,489,799,040.11/140,014.71
  6. Step 6: Final answer
    x = 189,192.97

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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.