Home / 140,877.08-194,409.21-77,214.72

Finding the Fourth Proportional to 140,877.08, 194,409.21 and 77,214.72

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Solution

The fourth proportional to 140,877.08, 194,409.21 and 77,214.72 is: 106,555.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,877.08 : 194,409.21 = 77,214.72 : x
  2. Step 2: Convert to fraction form
    140,877.08/194,409.21 = 77,214.72/x
  3. Step 3: Cross multiply
    140,877.08x = 194,409.21 × 77,214.72
  4. Step 4: Simplify right side
    140,877.08x = 15,011,252,715.57
  5. Step 5: Solve for x
    x = 15,011,252,715.57/140,877.08
  6. Step 6: Final answer
    x = 106,555.68

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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.