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Finding the Fourth Proportional to 155,752.34, 214,923.60 and 87,758.10

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Solution

The fourth proportional to 155,752.34, 214,923.60 and 87,758.10 is: 121,097.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,752.34 : 214,923.60 = 87,758.10 : x
  2. Step 2: Convert to fraction form
    155,752.34/214,923.60 = 87,758.10/x
  3. Step 3: Cross multiply
    155,752.34x = 214,923.60 × 87,758.10
  4. Step 4: Simplify right side
    155,752.34x = 18,861,286,781.16
  5. Step 5: Solve for x
    x = 18,861,286,781.16/155,752.34
  6. Step 6: Final answer
    x = 121,097.94

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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.