Home / 185,947.08-256,605.98-105,389.84

Finding the Fourth Proportional to 185,947.08, 256,605.98 and 105,389.84

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Solution

The fourth proportional to 185,947.08, 256,605.98 and 105,389.84 is: 145,437.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,947.08 : 256,605.98 = 105,389.84 : x
  2. Step 2: Convert to fraction form
    185,947.08/256,605.98 = 105,389.84/x
  3. Step 3: Cross multiply
    185,947.08x = 256,605.98 × 105,389.84
  4. Step 4: Simplify right side
    185,947.08x = 27,043,663,289.81
  5. Step 5: Solve for x
    x = 27,043,663,289.81/185,947.08
  6. Step 6: Final answer
    x = 145,437.42

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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.