Home / 130,728.96-196,044.80-51,816.96

Finding the Fourth Proportional to 130,728.96, 196,044.80 and 51,816.96

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Solution

The fourth proportional to 130,728.96, 196,044.80 and 51,816.96 is: 77,706.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,728.96 : 196,044.80 = 51,816.96 : x
  2. Step 2: Convert to fraction form
    130,728.96/196,044.80 = 51,816.96/x
  3. Step 3: Cross multiply
    130,728.96x = 196,044.80 × 51,816.96
  4. Step 4: Simplify right side
    130,728.96x = 10,158,445,559.81
  5. Step 5: Solve for x
    x = 10,158,445,559.81/130,728.96
  6. Step 6: Final answer
    x = 77,706.16

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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.