Home / 155,853.20-215,079.72-88,783.76

Finding the Fourth Proportional to 155,853.20, 215,079.72 and 88,783.76

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Solution

The fourth proportional to 155,853.20, 215,079.72 and 88,783.76 is: 122,522.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,853.20 : 215,079.72 = 88,783.76 : x
  2. Step 2: Convert to fraction form
    155,853.20/215,079.72 = 88,783.76/x
  3. Step 3: Cross multiply
    155,853.20x = 215,079.72 × 88,783.76
  4. Step 4: Simplify right side
    155,853.20x = 19,095,586,241.35
  5. Step 5: Solve for x
    x = 19,095,586,241.35/155,853.20
  6. Step 6: Final answer
    x = 122,522.90

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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.