Home / 140,403.24-193,756.86-83,813.40

Finding the Fourth Proportional to 140,403.24, 193,756.86 and 83,813.40

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Solution

The fourth proportional to 140,403.24, 193,756.86 and 83,813.40 is: 115,662.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,403.24 : 193,756.86 = 83,813.40 : x
  2. Step 2: Convert to fraction form
    140,403.24/193,756.86 = 83,813.40/x
  3. Step 3: Cross multiply
    140,403.24x = 193,756.86 × 83,813.40
  4. Step 4: Simplify right side
    140,403.24x = 16,239,421,209.92
  5. Step 5: Solve for x
    x = 16,239,421,209.92/140,403.24
  6. Step 6: Final answer
    x = 115,662.72

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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.