Home / 140,490.81-193,877.21-76,828.59

Finding the Fourth Proportional to 140,490.81, 193,877.21 and 76,828.59

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Solution

The fourth proportional to 140,490.81, 193,877.21 and 76,828.59 is: 106,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,490.81 : 193,877.21 = 76,828.59 : x
  2. Step 2: Convert to fraction form
    140,490.81/193,877.21 = 76,828.59/x
  3. Step 3: Cross multiply
    140,490.81x = 193,877.21 × 76,828.59
  4. Step 4: Simplify right side
    140,490.81x = 14,895,312,677.43
  5. Step 5: Solve for x
    x = 14,895,312,677.43/140,490.81
  6. Step 6: Final answer
    x = 106,023.40

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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.