Home / 243,002.90-335,342.70-135,572.67

Finding the Fourth Proportional to 243,002.90, 335,342.70 and 135,572.67

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Solution

The fourth proportional to 243,002.90, 335,342.70 and 135,572.67 is: 187,089.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,002.90 : 335,342.70 = 135,572.67 : x
  2. Step 2: Convert to fraction form
    243,002.90/335,342.70 = 135,572.67/x
  3. Step 3: Cross multiply
    243,002.90x = 335,342.70 × 135,572.67
  4. Step 4: Simplify right side
    243,002.90x = 45,463,305,204.01
  5. Step 5: Solve for x
    x = 45,463,305,204.01/243,002.90
  6. Step 6: Final answer
    x = 187,089.56

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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.