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Finding the Fourth Proportional to 147,110, 203,029.10 and 87,494

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Solution

The fourth proportional to 147,110, 203,029.10 and 87,494 is: 120,752.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,110 : 203,029.10 = 87,494 : x
  2. Step 2: Convert to fraction form
    147,110/203,029.10 = 87,494/x
  3. Step 3: Cross multiply
    147,110x = 203,029.10 × 87,494
  4. Step 4: Simplify right side
    147,110x = 17,763,828,075.40
  5. Step 5: Solve for x
    x = 17,763,828,075.40/147,110
  6. Step 6: Final answer
    x = 120,752.01

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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.