Home / 147,018.58-220,468.48-57,013.90

Finding the Fourth Proportional to 147,018.58, 220,468.48 and 57,013.90

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Solution

The fourth proportional to 147,018.58, 220,468.48 and 57,013.90 is: 85,497.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,018.58 : 220,468.48 = 57,013.90 : x
  2. Step 2: Convert to fraction form
    147,018.58/220,468.48 = 57,013.90/x
  3. Step 3: Cross multiply
    147,018.58x = 220,468.48 × 57,013.90
  4. Step 4: Simplify right side
    147,018.58x = 12,569,767,871.87
  5. Step 5: Solve for x
    x = 12,569,767,871.87/147,018.58
  6. Step 6: Final answer
    x = 85,497.82

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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.