Home / 130,013.60-195,020.40-121,265.60

Finding the Fourth Proportional to 130,013.60, 195,020.40 and 121,265.60

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Solution

The fourth proportional to 130,013.60, 195,020.40 and 121,265.60 is: 181,898.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,013.60 : 195,020.40 = 121,265.60 : x
  2. Step 2: Convert to fraction form
    130,013.60/195,020.40 = 121,265.60/x
  3. Step 3: Cross multiply
    130,013.60x = 195,020.40 × 121,265.60
  4. Step 4: Simplify right side
    130,013.60x = 23,649,265,818.24
  5. Step 5: Solve for x
    x = 23,649,265,818.24/130,013.60
  6. Step 6: Final answer
    x = 181,898.40

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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.