Home / 145,212.66-217,818.54-38,607.30

Finding the Fourth Proportional to 145,212.66, 217,818.54 and 38,607.30

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Solution

The fourth proportional to 145,212.66, 217,818.54 and 38,607.30 is: 57,910.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,212.66 : 217,818.54 = 38,607.30 : x
  2. Step 2: Convert to fraction form
    145,212.66/217,818.54 = 38,607.30/x
  3. Step 3: Cross multiply
    145,212.66x = 217,818.54 × 38,607.30
  4. Step 4: Simplify right side
    145,212.66x = 8,409,385,719.34
  5. Step 5: Solve for x
    x = 8,409,385,719.34/145,212.66
  6. Step 6: Final answer
    x = 57,910.83

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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.