Home / 145,119.54-217,693.05-56,379.89

Finding the Fourth Proportional to 145,119.54, 217,693.05 and 56,379.89

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Solution

The fourth proportional to 145,119.54, 217,693.05 and 56,379.89 is: 84,575.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,119.54 : 217,693.05 = 56,379.89 : x
  2. Step 2: Convert to fraction form
    145,119.54/217,693.05 = 56,379.89/x
  3. Step 3: Cross multiply
    145,119.54x = 217,693.05 × 56,379.89
  4. Step 4: Simplify right side
    145,119.54x = 12,273,510,212.76
  5. Step 5: Solve for x
    x = 12,273,510,212.76/145,119.54
  6. Step 6: Final answer
    x = 84,575.17

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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.