Home / 153,709.22-212,113.50-84,801.44

Finding the Fourth Proportional to 153,709.22, 212,113.50 and 84,801.44

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Solution

The fourth proportional to 153,709.22, 212,113.50 and 84,801.44 is: 117,023.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,709.22 : 212,113.50 = 84,801.44 : x
  2. Step 2: Convert to fraction form
    153,709.22/212,113.50 = 84,801.44/x
  3. Step 3: Cross multiply
    153,709.22x = 212,113.50 × 84,801.44
  4. Step 4: Simplify right side
    153,709.22x = 17,987,530,243.44
  5. Step 5: Solve for x
    x = 17,987,530,243.44/153,709.22
  6. Step 6: Final answer
    x = 117,023.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.