Home / 109,187.71-163,684.09-42,612.32

Finding the Fourth Proportional to 109,187.71, 163,684.09 and 42,612.32

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Solution

The fourth proportional to 109,187.71, 163,684.09 and 42,612.32 is: 63,880.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,187.71 : 163,684.09 = 42,612.32 : x
  2. Step 2: Convert to fraction form
    109,187.71/163,684.09 = 42,612.32/x
  3. Step 3: Cross multiply
    109,187.71x = 163,684.09 × 42,612.32
  4. Step 4: Simplify right side
    109,187.71x = 6,974,958,821.99
  5. Step 5: Solve for x
    x = 6,974,958,821.99/109,187.71
  6. Step 6: Final answer
    x = 63,880.44

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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.