Home / 148,977.60-205,567.62-87,687.30

Finding the Fourth Proportional to 148,977.60, 205,567.62 and 87,687.30

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Solution

The fourth proportional to 148,977.60, 205,567.62 and 87,687.30 is: 120,995.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,977.60 : 205,567.62 = 87,687.30 : x
  2. Step 2: Convert to fraction form
    148,977.60/205,567.62 = 87,687.30/x
  3. Step 3: Cross multiply
    148,977.60x = 205,567.62 × 87,687.30
  4. Step 4: Simplify right side
    148,977.60x = 18,025,669,565.23
  5. Step 5: Solve for x
    x = 18,025,669,565.23/148,977.60
  6. Step 6: Final answer
    x = 120,995.84

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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.