Home / 243,051.06-335,426.70-135,623.40

Finding the Fourth Proportional to 243,051.06, 335,426.70 and 135,623.40

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Solution

The fourth proportional to 243,051.06, 335,426.70 and 135,623.40 is: 187,169.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,051.06 : 335,426.70 = 135,623.40 : x
  2. Step 2: Convert to fraction form
    243,051.06/335,426.70 = 135,623.40/x
  3. Step 3: Cross multiply
    243,051.06x = 335,426.70 × 135,623.40
  4. Step 4: Simplify right side
    243,051.06x = 45,491,709,504.78
  5. Step 5: Solve for x
    x = 45,491,709,504.78/243,051.06
  6. Step 6: Final answer
    x = 187,169.35

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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.