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Finding the Fourth Proportional to 147,429.87, 221,013.87 and 57,451.74

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Solution

The fourth proportional to 147,429.87, 221,013.87 and 57,451.74 is: 86,126.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,429.87 : 221,013.87 = 57,451.74 : x
  2. Step 2: Convert to fraction form
    147,429.87/221,013.87 = 57,451.74/x
  3. Step 3: Cross multiply
    147,429.87x = 221,013.87 × 57,451.74
  4. Step 4: Simplify right side
    147,429.87x = 12,697,631,395.63
  5. Step 5: Solve for x
    x = 12,697,631,395.63/147,429.87
  6. Step 6: Final answer
    x = 86,126.59

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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.