Home / 127,803.60-191,574.12-57,731.76

Finding the Fourth Proportional to 127,803.60, 191,574.12 and 57,731.76

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Solution

The fourth proportional to 127,803.60, 191,574.12 and 57,731.76 is: 86,538.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,803.60 : 191,574.12 = 57,731.76 : x
  2. Step 2: Convert to fraction form
    127,803.60/191,574.12 = 57,731.76/x
  3. Step 3: Cross multiply
    127,803.60x = 191,574.12 × 57,731.76
  4. Step 4: Simplify right side
    127,803.60x = 11,059,911,118.05
  5. Step 5: Solve for x
    x = 11,059,911,118.05/127,803.60
  6. Step 6: Final answer
    x = 86,538.34

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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.