Home / 132,839.88-183,315.78-72,412.20

Finding the Fourth Proportional to 132,839.88, 183,315.78 and 72,412.20

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Solution

The fourth proportional to 132,839.88, 183,315.78 and 72,412.20 is: 99,927.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,839.88 : 183,315.78 = 72,412.20 : x
  2. Step 2: Convert to fraction form
    132,839.88/183,315.78 = 72,412.20/x
  3. Step 3: Cross multiply
    132,839.88x = 183,315.78 × 72,412.20
  4. Step 4: Simplify right side
    132,839.88x = 13,274,298,924.52
  5. Step 5: Solve for x
    x = 13,274,298,924.52/132,839.88
  6. Step 6: Final answer
    x = 99,927.06

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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.