Home / 127,823.40-191,523.20-77,752.02

Finding the Fourth Proportional to 127,823.40, 191,523.20 and 77,752.02

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Solution

The fourth proportional to 127,823.40, 191,523.20 and 77,752.02 is: 116,499.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,823.40 : 191,523.20 = 77,752.02 : x
  2. Step 2: Convert to fraction form
    127,823.40/191,523.20 = 77,752.02/x
  3. Step 3: Cross multiply
    127,823.40x = 191,523.20 × 77,752.02
  4. Step 4: Simplify right side
    127,823.40x = 14,891,315,288.10
  5. Step 5: Solve for x
    x = 14,891,315,288.10/127,823.40
  6. Step 6: Final answer
    x = 116,499.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.