Home / 145,764.72-218,643.24-40,590.96

Finding the Fourth Proportional to 145,764.72, 218,643.24 and 40,590.96

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Solution

The fourth proportional to 145,764.72, 218,643.24 and 40,590.96 is: 60,885.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,764.72 : 218,643.24 = 40,590.96 : x
  2. Step 2: Convert to fraction form
    145,764.72/218,643.24 = 40,590.96/x
  3. Step 3: Cross multiply
    145,764.72x = 218,643.24 × 40,590.96
  4. Step 4: Simplify right side
    145,764.72x = 8,874,939,009.11
  5. Step 5: Solve for x
    x = 8,874,939,009.11/145,764.72
  6. Step 6: Final answer
    x = 60,885.37

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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.