Home / 145,939.27-218,814.56-57,201.74

Finding the Fourth Proportional to 145,939.27, 218,814.56 and 57,201.74

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Solution

The fourth proportional to 145,939.27, 218,814.56 and 57,201.74 is: 85,765.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,939.27 : 218,814.56 = 57,201.74 : x
  2. Step 2: Convert to fraction form
    145,939.27/218,814.56 = 57,201.74/x
  3. Step 3: Cross multiply
    145,939.27x = 218,814.56 × 57,201.74
  4. Step 4: Simplify right side
    145,939.27x = 12,516,574,776.91
  5. Step 5: Solve for x
    x = 12,516,574,776.91/145,939.27
  6. Step 6: Final answer
    x = 85,765.64

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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.