Home / 107,700.24-161,915.26-86,787.12

Finding the Fourth Proportional to 107,700.24, 161,915.26 and 86,787.12

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Solution

The fourth proportional to 107,700.24, 161,915.26 and 86,787.12 is: 130,474.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,700.24 : 161,915.26 = 86,787.12 : x
  2. Step 2: Convert to fraction form
    107,700.24/161,915.26 = 86,787.12/x
  3. Step 3: Cross multiply
    107,700.24x = 161,915.26 × 86,787.12
  4. Step 4: Simplify right side
    107,700.24x = 14,052,159,099.45
  5. Step 5: Solve for x
    x = 14,052,159,099.45/107,700.24
  6. Step 6: Final answer
    x = 130,474.72

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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.