Home / 131,845.16-182,030.10-86,603.42

Finding the Fourth Proportional to 131,845.16, 182,030.10 and 86,603.42

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Solution

The fourth proportional to 131,845.16, 182,030.10 and 86,603.42 is: 119,567.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,845.16 : 182,030.10 = 86,603.42 : x
  2. Step 2: Convert to fraction form
    131,845.16/182,030.10 = 86,603.42/x
  3. Step 3: Cross multiply
    131,845.16x = 182,030.10 × 86,603.42
  4. Step 4: Simplify right side
    131,845.16x = 15,764,429,202.94
  5. Step 5: Solve for x
    x = 15,764,429,202.94/131,845.16
  6. Step 6: Final answer
    x = 119,567.75

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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.