Home / 140,206.28-193,495.73-79,779.47

Finding the Fourth Proportional to 140,206.28, 193,495.73 and 79,779.47

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Solution

The fourth proportional to 140,206.28, 193,495.73 and 79,779.47 is: 110,101.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,206.28 : 193,495.73 = 79,779.47 : x
  2. Step 2: Convert to fraction form
    140,206.28/193,495.73 = 79,779.47/x
  3. Step 3: Cross multiply
    140,206.28x = 193,495.73 × 79,779.47
  4. Step 4: Simplify right side
    140,206.28x = 15,436,985,420.29
  5. Step 5: Solve for x
    x = 15,436,985,420.29/140,206.28
  6. Step 6: Final answer
    x = 110,101.96

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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.