Home / 243,584.79-336,147.40-136,154.72

Finding the Fourth Proportional to 243,584.79, 336,147.40 and 136,154.72

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Solution

The fourth proportional to 243,584.79, 336,147.40 and 136,154.72 is: 187,893.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,584.79 : 336,147.40 = 136,154.72 : x
  2. Step 2: Convert to fraction form
    243,584.79/336,147.40 = 136,154.72/x
  3. Step 3: Cross multiply
    243,584.79x = 336,147.40 × 136,154.72
  4. Step 4: Simplify right side
    243,584.79x = 45,768,056,136.29
  5. Step 5: Solve for x
    x = 45,768,056,136.29/243,584.79
  6. Step 6: Final answer
    x = 187,893.74

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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.