Home / 243,136.80-335,535.12-135,706.32

Finding the Fourth Proportional to 243,136.80, 335,535.12 and 135,706.32

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Solution

The fourth proportional to 243,136.80, 335,535.12 and 135,706.32 is: 187,278.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,136.80 : 335,535.12 = 135,706.32 : x
  2. Step 2: Convert to fraction form
    243,136.80/335,535.12 = 135,706.32/x
  3. Step 3: Cross multiply
    243,136.80x = 335,535.12 × 135,706.32
  4. Step 4: Simplify right side
    243,136.80x = 45,534,236,365.96
  5. Step 5: Solve for x
    x = 45,534,236,365.96/243,136.80
  6. Step 6: Final answer
    x = 187,278.26

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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.