Home / 147,553.53-203,617.98-87,143.64

Finding the Fourth Proportional to 147,553.53, 203,617.98 and 87,143.64

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Solution

The fourth proportional to 147,553.53, 203,617.98 and 87,143.64 is: 120,254.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,553.53 : 203,617.98 = 87,143.64 : x
  2. Step 2: Convert to fraction form
    147,553.53/203,617.98 = 87,143.64/x
  3. Step 3: Cross multiply
    147,553.53x = 203,617.98 × 87,143.64
  4. Step 4: Simplify right side
    147,553.53x = 17,744,011,946.65
  5. Step 5: Solve for x
    x = 17,744,011,946.65/147,553.53
  6. Step 6: Final answer
    x = 120,254.74

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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.