Home / 243,985.46-336,710.45-135,089.79

Finding the Fourth Proportional to 243,985.46, 336,710.45 and 135,089.79

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Solution

The fourth proportional to 243,985.46, 336,710.45 and 135,089.79 is: 186,429.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,985.46 : 336,710.45 = 135,089.79 : x
  2. Step 2: Convert to fraction form
    243,985.46/336,710.45 = 135,089.79/x
  3. Step 3: Cross multiply
    243,985.46x = 336,710.45 × 135,089.79
  4. Step 4: Simplify right side
    243,985.46x = 45,486,143,244.91
  5. Step 5: Solve for x
    x = 45,486,143,244.91/243,985.46
  6. Step 6: Final answer
    x = 186,429.73

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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.