Home / 109,389.21-163,974.78-46,225.20

Finding the Fourth Proportional to 109,389.21, 163,974.78 and 46,225.20

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Solution

The fourth proportional to 109,389.21, 163,974.78 and 46,225.20 is: 69,291.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,389.21 : 163,974.78 = 46,225.20 : x
  2. Step 2: Convert to fraction form
    109,389.21/163,974.78 = 46,225.20/x
  3. Step 3: Cross multiply
    109,389.21x = 163,974.78 × 46,225.20
  4. Step 4: Simplify right side
    109,389.21x = 7,579,767,000.46
  5. Step 5: Solve for x
    x = 7,579,767,000.46/109,389.21
  6. Step 6: Final answer
    x = 69,291.72

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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.