Home / 109,623.70-151,285.08-61,874.20

Finding the Fourth Proportional to 109,623.70, 151,285.08 and 61,874.20

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Solution

The fourth proportional to 109,623.70, 151,285.08 and 61,874.20 is: 85,388.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,623.70 : 151,285.08 = 61,874.20 : x
  2. Step 2: Convert to fraction form
    109,623.70/151,285.08 = 61,874.20/x
  3. Step 3: Cross multiply
    109,623.70x = 151,285.08 × 61,874.20
  4. Step 4: Simplify right side
    109,623.70x = 9,360,643,296.94
  5. Step 5: Solve for x
    x = 9,360,643,296.94/109,623.70
  6. Step 6: Final answer
    x = 85,388.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.