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Finding the Fourth Proportional to 168,506.40, 253,051.20 and 89,774.40

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Solution

The fourth proportional to 168,506.40, 253,051.20 and 89,774.40 is: 134,816.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,506.40 : 253,051.20 = 89,774.40 : x
  2. Step 2: Convert to fraction form
    168,506.40/253,051.20 = 89,774.40/x
  3. Step 3: Cross multiply
    168,506.40x = 253,051.20 × 89,774.40
  4. Step 4: Simplify right side
    168,506.40x = 22,717,519,649.28
  5. Step 5: Solve for x
    x = 22,717,519,649.28/168,506.40
  6. Step 6: Final answer
    x = 134,816.95

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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.