Home / 145,261.16-217,904.31-40,080.12

Finding the Fourth Proportional to 145,261.16, 217,904.31 and 40,080.12

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Solution

The fourth proportional to 145,261.16, 217,904.31 and 40,080.12 is: 60,123.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,261.16 : 217,904.31 = 40,080.12 : x
  2. Step 2: Convert to fraction form
    145,261.16/217,904.31 = 40,080.12/x
  3. Step 3: Cross multiply
    145,261.16x = 217,904.31 × 40,080.12
  4. Step 4: Simplify right side
    145,261.16x = 8,733,630,692.92
  5. Step 5: Solve for x
    x = 8,733,630,692.92/145,261.16
  6. Step 6: Final answer
    x = 60,123.65

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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.