Home / 148,681.62-205,182.14-80,699.22

Finding the Fourth Proportional to 148,681.62, 205,182.14 and 80,699.22

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Solution

The fourth proportional to 148,681.62, 205,182.14 and 80,699.22 is: 111,365.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,681.62 : 205,182.14 = 80,699.22 : x
  2. Step 2: Convert to fraction form
    148,681.62/205,182.14 = 80,699.22/x
  3. Step 3: Cross multiply
    148,681.62x = 205,182.14 × 80,699.22
  4. Step 4: Simplify right side
    148,681.62x = 16,558,038,252.43
  5. Step 5: Solve for x
    x = 16,558,038,252.43/148,681.62
  6. Step 6: Final answer
    x = 111,365.74

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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.