Home / 144,156.22-198,882.87-90,421.63

Finding the Fourth Proportional to 144,156.22, 198,882.87 and 90,421.63

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Solution

The fourth proportional to 144,156.22, 198,882.87 and 90,421.63 is: 124,748.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,156.22 : 198,882.87 = 90,421.63 : x
  2. Step 2: Convert to fraction form
    144,156.22/198,882.87 = 90,421.63/x
  3. Step 3: Cross multiply
    144,156.22x = 198,882.87 × 90,421.63
  4. Step 4: Simplify right side
    144,156.22x = 17,983,313,284.48
  5. Step 5: Solve for x
    x = 17,983,313,284.48/144,156.22
  6. Step 6: Final answer
    x = 124,748.78

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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.