Home / 243,023.64-335,372.16-135,587.28

Finding the Fourth Proportional to 243,023.64, 335,372.16 and 135,587.28

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Solution

The fourth proportional to 243,023.64, 335,372.16 and 135,587.28 is: 187,110.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,023.64 : 335,372.16 = 135,587.28 : x
  2. Step 2: Convert to fraction form
    243,023.64/335,372.16 = 135,587.28/x
  3. Step 3: Cross multiply
    243,023.64x = 335,372.16 × 135,587.28
  4. Step 4: Simplify right side
    243,023.64x = 45,472,198,962.12
  5. Step 5: Solve for x
    x = 45,472,198,962.12/243,023.64
  6. Step 6: Final answer
    x = 187,110.19

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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.