Home / 147,338.16-221,161.85-130,578.40

Finding the Fourth Proportional to 147,338.16, 221,161.85 and 130,578.40

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Solution

The fourth proportional to 147,338.16, 221,161.85 and 130,578.40 is: 196,004.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,338.16 : 221,161.85 = 130,578.40 : x
  2. Step 2: Convert to fraction form
    147,338.16/221,161.85 = 130,578.40/x
  3. Step 3: Cross multiply
    147,338.16x = 221,161.85 × 130,578.40
  4. Step 4: Simplify right side
    147,338.16x = 28,878,960,514.04
  5. Step 5: Solve for x
    x = 28,878,960,514.04/147,338.16
  6. Step 6: Final answer
    x = 196,004.62

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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.