Home / 106,555.12-159,860.36-87,610.98

Finding the Fourth Proportional to 106,555.12, 159,860.36 and 87,610.98

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Solution

The fourth proportional to 106,555.12, 159,860.36 and 87,610.98 is: 131,439.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,555.12 : 159,860.36 = 87,610.98 : x
  2. Step 2: Convert to fraction form
    106,555.12/159,860.36 = 87,610.98/x
  3. Step 3: Cross multiply
    106,555.12x = 159,860.36 × 87,610.98
  4. Step 4: Simplify right side
    106,555.12x = 14,005,522,802.75
  5. Step 5: Solve for x
    x = 14,005,522,802.75/106,555.12
  6. Step 6: Final answer
    x = 131,439.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.