Home / 130,612.16-195,800.80-47,448

Finding the Fourth Proportional to 130,612.16, 195,800.80 and 47,448

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Solution

The fourth proportional to 130,612.16, 195,800.80 and 47,448 is: 71,129.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,612.16 : 195,800.80 = 47,448 : x
  2. Step 2: Convert to fraction form
    130,612.16/195,800.80 = 47,448/x
  3. Step 3: Cross multiply
    130,612.16x = 195,800.80 × 47,448
  4. Step 4: Simplify right side
    130,612.16x = 9,290,356,358.40
  5. Step 5: Solve for x
    x = 9,290,356,358.40/130,612.16
  6. Step 6: Final answer
    x = 71,129.34

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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.