Home / 130,663.80-196,060.50-51,776.28

Finding the Fourth Proportional to 130,663.80, 196,060.50 and 51,776.28

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Solution

The fourth proportional to 130,663.80, 196,060.50 and 51,776.28 is: 77,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,663.80 : 196,060.50 = 51,776.28 : x
  2. Step 2: Convert to fraction form
    130,663.80/196,060.50 = 51,776.28/x
  3. Step 3: Cross multiply
    130,663.80x = 196,060.50 × 51,776.28
  4. Step 4: Simplify right side
    130,663.80x = 10,151,283,344.94
  5. Step 5: Solve for x
    x = 10,151,283,344.94/130,663.80
  6. Step 6: Final answer
    x = 77,690.10

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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.