Home / 149,185.18-205,875.45-82,117.18

Finding the Fourth Proportional to 149,185.18, 205,875.45 and 82,117.18

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Solution

The fourth proportional to 149,185.18, 205,875.45 and 82,117.18 is: 113,321.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,185.18 : 205,875.45 = 82,117.18 : x
  2. Step 2: Convert to fraction form
    149,185.18/205,875.45 = 82,117.18/x
  3. Step 3: Cross multiply
    149,185.18x = 205,875.45 × 82,117.18
  4. Step 4: Simplify right side
    149,185.18x = 16,905,911,385.23
  5. Step 5: Solve for x
    x = 16,905,911,385.23/149,185.18
  6. Step 6: Final answer
    x = 113,321.65

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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.