Home / 109,875.20-164,812.80-39,756.80

Finding the Fourth Proportional to 109,875.20, 164,812.80 and 39,756.80

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Solution

The fourth proportional to 109,875.20, 164,812.80 and 39,756.80 is: 59,635.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,875.20 : 164,812.80 = 39,756.80 : x
  2. Step 2: Convert to fraction form
    109,875.20/164,812.80 = 39,756.80/x
  3. Step 3: Cross multiply
    109,875.20x = 164,812.80 × 39,756.80
  4. Step 4: Simplify right side
    109,875.20x = 6,552,429,527.04
  5. Step 5: Solve for x
    x = 6,552,429,527.04/109,875.20
  6. Step 6: Final answer
    x = 59,635.20

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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.