Home / 109,989.60-164,984.24-39,868.80

Finding the Fourth Proportional to 109,989.60, 164,984.24 and 39,868.80

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Solution

The fourth proportional to 109,989.60, 164,984.24 and 39,868.80 is: 59,803.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,989.60 : 164,984.24 = 39,868.80 : x
  2. Step 2: Convert to fraction form
    109,989.60/164,984.24 = 39,868.80/x
  3. Step 3: Cross multiply
    109,989.60x = 164,984.24 × 39,868.80
  4. Step 4: Simplify right side
    109,989.60x = 6,577,723,667.71
  5. Step 5: Solve for x
    x = 6,577,723,667.71/109,989.60
  6. Step 6: Final answer
    x = 59,803.14

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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.