Home / 243,515.16-336,024.90-136,089.72

Finding the Fourth Proportional to 243,515.16, 336,024.90 and 136,089.72

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Solution

The fourth proportional to 243,515.16, 336,024.90 and 136,089.72 is: 187,789.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,515.16 : 336,024.90 = 136,089.72 : x
  2. Step 2: Convert to fraction form
    243,515.16/336,024.90 = 136,089.72/x
  3. Step 3: Cross multiply
    243,515.16x = 336,024.90 × 136,089.72
  4. Step 4: Simplify right side
    243,515.16x = 45,729,534,554.03
  5. Step 5: Solve for x
    x = 45,729,534,554.03/243,515.16
  6. Step 6: Final answer
    x = 187,789.27

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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.