Home / 141,888.23-195,807.20-78,228.30

Finding the Fourth Proportional to 141,888.23, 195,807.20 and 78,228.30

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Solution

The fourth proportional to 141,888.23, 195,807.20 and 78,228.30 is: 107,955.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,888.23 : 195,807.20 = 78,228.30 : x
  2. Step 2: Convert to fraction form
    141,888.23/195,807.20 = 78,228.30/x
  3. Step 3: Cross multiply
    141,888.23x = 195,807.20 × 78,228.30
  4. Step 4: Simplify right side
    141,888.23x = 15,317,664,383.76
  5. Step 5: Solve for x
    x = 15,317,664,383.76/141,888.23
  6. Step 6: Final answer
    x = 107,955.85

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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.