Home / 134,442.32-185,509.82-77,842.76

Finding the Fourth Proportional to 134,442.32, 185,509.82 and 77,842.76

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Solution

The fourth proportional to 134,442.32, 185,509.82 and 77,842.76 is: 107,411.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,442.32 : 185,509.82 = 77,842.76 : x
  2. Step 2: Convert to fraction form
    134,442.32/185,509.82 = 77,842.76/x
  3. Step 3: Cross multiply
    134,442.32x = 185,509.82 × 77,842.76
  4. Step 4: Simplify right side
    134,442.32x = 14,440,596,395.90
  5. Step 5: Solve for x
    x = 14,440,596,395.90/134,442.32
  6. Step 6: Final answer
    x = 107,411.09

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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.