Home / 243,603.20-336,174.24-136,177.60

Finding the Fourth Proportional to 243,603.20, 336,174.24 and 136,177.60

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Solution

The fourth proportional to 243,603.20, 336,174.24 and 136,177.60 is: 187,926.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,603.20 : 336,174.24 = 136,177.60 : x
  2. Step 2: Convert to fraction form
    243,603.20/336,174.24 = 136,177.60/x
  3. Step 3: Cross multiply
    243,603.20x = 336,174.24 × 136,177.60
  4. Step 4: Simplify right side
    243,603.20x = 45,779,401,185.02
  5. Step 5: Solve for x
    x = 45,779,401,185.02/243,603.20
  6. Step 6: Final answer
    x = 187,926.11

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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.