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Finding the Fourth Proportional to 117,008.70, 175,513.05 and 87,484.20

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Solution

The fourth proportional to 117,008.70, 175,513.05 and 87,484.20 is: 131,226.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,008.70 : 175,513.05 = 87,484.20 : x
  2. Step 2: Convert to fraction form
    117,008.70/175,513.05 = 87,484.20/x
  3. Step 3: Cross multiply
    117,008.70x = 175,513.05 × 87,484.20
  4. Step 4: Simplify right side
    117,008.70x = 15,354,618,768.81
  5. Step 5: Solve for x
    x = 15,354,618,768.81/117,008.70
  6. Step 6: Final answer
    x = 131,226.30

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1.5x scale

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.