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Finding the Fourth Proportional to 130,798.80, 196,279.20 and 51,904.80

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Solution

The fourth proportional to 130,798.80, 196,279.20 and 51,904.80 is: 77,889.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,798.80 : 196,279.20 = 51,904.80 : x
  2. Step 2: Convert to fraction form
    130,798.80/196,279.20 = 51,904.80/x
  3. Step 3: Cross multiply
    130,798.80x = 196,279.20 × 51,904.80
  4. Step 4: Simplify right side
    130,798.80x = 10,187,832,620.16
  5. Step 5: Solve for x
    x = 10,187,832,620.16/130,798.80
  6. Step 6: Final answer
    x = 77,889.34

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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.