Home / 130,768.12-196,123.02-51,861.16

Finding the Fourth Proportional to 130,768.12, 196,123.02 and 51,861.16

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Solution

The fourth proportional to 130,768.12, 196,123.02 and 51,861.16 is: 77,780.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,768.12 : 196,123.02 = 51,861.16 : x
  2. Step 2: Convert to fraction form
    130,768.12/196,123.02 = 51,861.16/x
  3. Step 3: Cross multiply
    130,768.12x = 196,123.02 × 51,861.16
  4. Step 4: Simplify right side
    130,768.12x = 10,171,167,319.90
  5. Step 5: Solve for x
    x = 10,171,167,319.90/130,768.12
  6. Step 6: Final answer
    x = 77,780.18

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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.