Home / 103,219.10-154,833.15-28,337.30

Finding the Fourth Proportional to 103,219.10, 154,833.15 and 28,337.30

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Solution

The fourth proportional to 103,219.10, 154,833.15 and 28,337.30 is: 42,507.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,219.10 : 154,833.15 = 28,337.30 : x
  2. Step 2: Convert to fraction form
    103,219.10/154,833.15 = 28,337.30/x
  3. Step 3: Cross multiply
    103,219.10x = 154,833.15 × 28,337.30
  4. Step 4: Simplify right side
    103,219.10x = 4,387,553,421.50
  5. Step 5: Solve for x
    x = 4,387,553,421.50/103,219.10
  6. Step 6: Final answer
    x = 42,507.19

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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.