Home / 142,277.52-212,119.53-138,642.24

Finding the Fourth Proportional to 142,277.52, 212,119.53 and 138,642.24

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Solution

The fourth proportional to 142,277.52, 212,119.53 and 138,642.24 is: 206,699.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,277.52 : 212,119.53 = 138,642.24 : x
  2. Step 2: Convert to fraction form
    142,277.52/212,119.53 = 138,642.24/x
  3. Step 3: Cross multiply
    142,277.52x = 212,119.53 × 138,642.24
  4. Step 4: Simplify right side
    142,277.52x = 29,408,726,786.95
  5. Step 5: Solve for x
    x = 29,408,726,786.95/142,277.52
  6. Step 6: Final answer
    x = 206,699.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.