Home / 109,647.78-151,314.30-59,346.78

Finding the Fourth Proportional to 109,647.78, 151,314.30 and 59,346.78

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Solution

The fourth proportional to 109,647.78, 151,314.30 and 59,346.78 is: 81,898.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,647.78 : 151,314.30 = 59,346.78 : x
  2. Step 2: Convert to fraction form
    109,647.78/151,314.30 = 59,346.78/x
  3. Step 3: Cross multiply
    109,647.78x = 151,314.30 × 59,346.78
  4. Step 4: Simplify right side
    109,647.78x = 8,980,016,472.95
  5. Step 5: Solve for x
    x = 8,980,016,472.95/109,647.78
  6. Step 6: Final answer
    x = 81,898.75

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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.