Home / 155,269.80-214,290.21-86,366.13

Finding the Fourth Proportional to 155,269.80, 214,290.21 and 86,366.13

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Solution

The fourth proportional to 155,269.80, 214,290.21 and 86,366.13 is: 119,195.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,269.80 : 214,290.21 = 86,366.13 : x
  2. Step 2: Convert to fraction form
    155,269.80/214,290.21 = 86,366.13/x
  3. Step 3: Cross multiply
    155,269.80x = 214,290.21 × 86,366.13
  4. Step 4: Simplify right side
    155,269.80x = 18,507,416,134.59
  5. Step 5: Solve for x
    x = 18,507,416,134.59/155,269.80
  6. Step 6: Final answer
    x = 119,195.21

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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.