Home / 102,279.62-153,440.35-43,115.30

Finding the Fourth Proportional to 102,279.62, 153,440.35 and 43,115.30

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Solution

The fourth proportional to 102,279.62, 153,440.35 and 43,115.30 is: 64,681.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,279.62 : 153,440.35 = 43,115.30 : x
  2. Step 2: Convert to fraction form
    102,279.62/153,440.35 = 43,115.30/x
  3. Step 3: Cross multiply
    102,279.62x = 153,440.35 × 43,115.30
  4. Step 4: Simplify right side
    102,279.62x = 6,615,626,722.36
  5. Step 5: Solve for x
    x = 6,615,626,722.36/102,279.62
  6. Step 6: Final answer
    x = 64,681.77

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1.5x scale

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.