Home / 180,389.30-270,677.32-130,878.05

Finding the Fourth Proportional to 180,389.30, 270,677.32 and 130,878.05

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Solution

The fourth proportional to 180,389.30, 270,677.32 and 130,878.05 is: 196,384.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,389.30 : 270,677.32 = 130,878.05 : x
  2. Step 2: Convert to fraction form
    180,389.30/270,677.32 = 130,878.05/x
  3. Step 3: Cross multiply
    180,389.30x = 270,677.32 × 130,878.05
  4. Step 4: Simplify right side
    180,389.30x = 35,425,719,820.83
  5. Step 5: Solve for x
    x = 35,425,719,820.83/180,389.30
  6. Step 6: Final answer
    x = 196,384.82

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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.