Home / 127,821.60-191,926.80-98,272.80

Finding the Fourth Proportional to 127,821.60, 191,926.80 and 98,272.80

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Solution

The fourth proportional to 127,821.60, 191,926.80 and 98,272.80 is: 147,558.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,821.60 : 191,926.80 = 98,272.80 : x
  2. Step 2: Convert to fraction form
    127,821.60/191,926.80 = 98,272.80/x
  3. Step 3: Cross multiply
    127,821.60x = 191,926.80 × 98,272.80
  4. Step 4: Simplify right side
    127,821.60x = 18,861,184,031.04
  5. Step 5: Solve for x
    x = 18,861,184,031.04/127,821.60
  6. Step 6: Final answer
    x = 147,558.66

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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.