Home / 243,428.36-335,937.98-136,010.21

Finding the Fourth Proportional to 243,428.36, 335,937.98 and 136,010.21

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Solution

The fourth proportional to 243,428.36, 335,937.98 and 136,010.21 is: 187,697.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,428.36 : 335,937.98 = 136,010.21 : x
  2. Step 2: Convert to fraction form
    243,428.36/335,937.98 = 136,010.21/x
  3. Step 3: Cross multiply
    243,428.36x = 335,937.98 × 136,010.21
  4. Step 4: Simplify right side
    243,428.36x = 45,690,993,867.11
  5. Step 5: Solve for x
    x = 45,690,993,867.11/243,428.36
  6. Step 6: Final answer
    x = 187,697.91

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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.