Home / 113,467.40-170,265.90-78,432.20

Finding the Fourth Proportional to 113,467.40, 170,265.90 and 78,432.20

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Solution

The fourth proportional to 113,467.40, 170,265.90 and 78,432.20 is: 117,693.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,467.40 : 170,265.90 = 78,432.20 : x
  2. Step 2: Convert to fraction form
    113,467.40/170,265.90 = 78,432.20/x
  3. Step 3: Cross multiply
    113,467.40x = 170,265.90 × 78,432.20
  4. Step 4: Simplify right side
    113,467.40x = 13,354,329,121.98
  5. Step 5: Solve for x
    x = 13,354,329,121.98/113,467.40
  6. Step 6: Final answer
    x = 117,693.09

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1.5x scale

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.