Home / 140,369.20-193,709.10-76,707.40

Finding the Fourth Proportional to 140,369.20, 193,709.10 and 76,707.40

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Solution

The fourth proportional to 140,369.20, 193,709.10 and 76,707.40 is: 105,856.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,369.20 : 193,709.10 = 76,707.40 : x
  2. Step 2: Convert to fraction form
    140,369.20/193,709.10 = 76,707.40/x
  3. Step 3: Cross multiply
    140,369.20x = 193,709.10 × 76,707.40
  4. Step 4: Simplify right side
    140,369.20x = 14,858,921,417.34
  5. Step 5: Solve for x
    x = 14,858,921,417.34/140,369.20
  6. Step 6: Final answer
    x = 105,856.00

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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.