Home / 140,441.96-193,810.59-76,779.76

Finding the Fourth Proportional to 140,441.96, 193,810.59 and 76,779.76

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Solution

The fourth proportional to 140,441.96, 193,810.59 and 76,779.76 is: 105,956.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,441.96 : 193,810.59 = 76,779.76 : x
  2. Step 2: Convert to fraction form
    140,441.96/193,810.59 = 76,779.76/x
  3. Step 3: Cross multiply
    140,441.96x = 193,810.59 × 76,779.76
  4. Step 4: Simplify right side
    140,441.96x = 14,880,730,585.66
  5. Step 5: Solve for x
    x = 14,880,730,585.66/140,441.96
  6. Step 6: Final answer
    x = 105,956.44

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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.