Home / 109,463.87-163,949.76-66,653.35

Finding the Fourth Proportional to 109,463.87, 163,949.76 and 66,653.35

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Solution

The fourth proportional to 109,463.87, 163,949.76 and 66,653.35 is: 99,830.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,463.87 : 163,949.76 = 66,653.35 : x
  2. Step 2: Convert to fraction form
    109,463.87/163,949.76 = 66,653.35/x
  3. Step 3: Cross multiply
    109,463.87x = 163,949.76 × 66,653.35
  4. Step 4: Simplify right side
    109,463.87x = 10,927,799,915.95
  5. Step 5: Solve for x
    x = 10,927,799,915.95/109,463.87
  6. Step 6: Final answer
    x = 99,830.20

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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.