Home / 155,920.84-215,269.16-108,157.48

Finding the Fourth Proportional to 155,920.84, 215,269.16 and 108,157.48

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Solution

The fourth proportional to 155,920.84, 215,269.16 and 108,157.48 is: 149,325.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,920.84 : 215,269.16 = 108,157.48 : x
  2. Step 2: Convert to fraction form
    155,920.84/215,269.16 = 108,157.48/x
  3. Step 3: Cross multiply
    155,920.84x = 215,269.16 × 108,157.48
  4. Step 4: Simplify right side
    155,920.84x = 23,282,969,867.32
  5. Step 5: Solve for x
    x = 23,282,969,867.32/155,920.84
  6. Step 6: Final answer
    x = 149,325.58

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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.