Home / 169,945.80-255,113.10-99,864.60

Finding the Fourth Proportional to 169,945.80, 255,113.10 and 99,864.60

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Solution

The fourth proportional to 169,945.80, 255,113.10 and 99,864.60 is: 149,911.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,945.80 : 255,113.10 = 99,864.60 : x
  2. Step 2: Convert to fraction form
    169,945.80/255,113.10 = 99,864.60/x
  3. Step 3: Cross multiply
    169,945.80x = 255,113.10 × 99,864.60
  4. Step 4: Simplify right side
    169,945.80x = 25,476,767,686.26
  5. Step 5: Solve for x
    x = 25,476,767,686.26/169,945.80
  6. Step 6: Final answer
    x = 149,911.13

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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.