Home / 130,411.60-195,568.80-46,139.20

Finding the Fourth Proportional to 130,411.60, 195,568.80 and 46,139.20

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Solution

The fourth proportional to 130,411.60, 195,568.80 and 46,139.20 is: 69,191.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,411.60 : 195,568.80 = 46,139.20 : x
  2. Step 2: Convert to fraction form
    130,411.60/195,568.80 = 46,139.20/x
  3. Step 3: Cross multiply
    130,411.60x = 195,568.80 × 46,139.20
  4. Step 4: Simplify right side
    130,411.60x = 9,023,387,976.96
  5. Step 5: Solve for x
    x = 9,023,387,976.96/130,411.60
  6. Step 6: Final answer
    x = 69,191.61

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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.