Home / 109,257.80-163,886.70-39,111.80

Finding the Fourth Proportional to 109,257.80, 163,886.70 and 39,111.80

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Solution

The fourth proportional to 109,257.80, 163,886.70 and 39,111.80 is: 58,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,257.80 : 163,886.70 = 39,111.80 : x
  2. Step 2: Convert to fraction form
    109,257.80/163,886.70 = 39,111.80/x
  3. Step 3: Cross multiply
    109,257.80x = 163,886.70 × 39,111.80
  4. Step 4: Simplify right side
    109,257.80x = 6,409,903,833.06
  5. Step 5: Solve for x
    x = 6,409,903,833.06/109,257.80
  6. Step 6: Final answer
    x = 58,667.70

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1.5x scale

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.