Home / 145,709.18-218,567.87-40,528.15

Finding the Fourth Proportional to 145,709.18, 218,567.87 and 40,528.15

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Solution

The fourth proportional to 145,709.18, 218,567.87 and 40,528.15 is: 60,793.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,709.18 : 218,567.87 = 40,528.15 : x
  2. Step 2: Convert to fraction form
    145,709.18/218,567.87 = 40,528.15/x
  3. Step 3: Cross multiply
    145,709.18x = 218,567.87 × 40,528.15
  4. Step 4: Simplify right side
    145,709.18x = 8,858,150,823.46
  5. Step 5: Solve for x
    x = 8,858,150,823.46/145,709.18
  6. Step 6: Final answer
    x = 60,793.36

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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.