Home / 153,237.10-211,347.38-99,539.42

Finding the Fourth Proportional to 153,237.10, 211,347.38 and 99,539.42

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Solution

The fourth proportional to 153,237.10, 211,347.38 and 99,539.42 is: 137,286.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,237.10 : 211,347.38 = 99,539.42 : x
  2. Step 2: Convert to fraction form
    153,237.10/211,347.38 = 99,539.42/x
  3. Step 3: Cross multiply
    153,237.10x = 211,347.38 × 99,539.42
  4. Step 4: Simplify right side
    153,237.10x = 21,037,394,255.92
  5. Step 5: Solve for x
    x = 21,037,394,255.92/153,237.10
  6. Step 6: Final answer
    x = 137,286.56

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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.