Home / 103,427.30-155,140.95-73,246.70

Finding the Fourth Proportional to 103,427.30, 155,140.95 and 73,246.70

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Solution

The fourth proportional to 103,427.30, 155,140.95 and 73,246.70 is: 109,870.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,427.30 : 155,140.95 = 73,246.70 : x
  2. Step 2: Convert to fraction form
    103,427.30/155,140.95 = 73,246.70/x
  3. Step 3: Cross multiply
    103,427.30x = 155,140.95 × 73,246.70
  4. Step 4: Simplify right side
    103,427.30x = 11,363,562,622.37
  5. Step 5: Solve for x
    x = 11,363,562,622.37/103,427.30
  6. Step 6: Final answer
    x = 109,870.05

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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.