Home / 130,301.70-195,870.15-121,056.90

Finding the Fourth Proportional to 130,301.70, 195,870.15 and 121,056.90

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Solution

The fourth proportional to 130,301.70, 195,870.15 and 121,056.90 is: 181,973.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,301.70 : 195,870.15 = 121,056.90 : x
  2. Step 2: Convert to fraction form
    130,301.70/195,870.15 = 121,056.90/x
  3. Step 3: Cross multiply
    130,301.70x = 195,870.15 × 121,056.90
  4. Step 4: Simplify right side
    130,301.70x = 23,711,433,161.54
  5. Step 5: Solve for x
    x = 23,711,433,161.54/130,301.70
  6. Step 6: Final answer
    x = 181,973.32

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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.