Home / 169,971.40-254,438.70-99,641.80

Finding the Fourth Proportional to 169,971.40, 254,438.70 and 99,641.80

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Solution

The fourth proportional to 169,971.40, 254,438.70 and 99,641.80 is: 149,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,971.40 : 254,438.70 = 99,641.80 : x
  2. Step 2: Convert to fraction form
    169,971.40/254,438.70 = 99,641.80/x
  3. Step 3: Cross multiply
    169,971.40x = 254,438.70 × 99,641.80
  4. Step 4: Simplify right side
    169,971.40x = 25,352,730,057.66
  5. Step 5: Solve for x
    x = 25,352,730,057.66/169,971.40
  6. Step 6: Final answer
    x = 149,158.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.