Home / 145,433.51-218,148.63-56,749.31

Finding the Fourth Proportional to 145,433.51, 218,148.63 and 56,749.31

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Solution

The fourth proportional to 145,433.51, 218,148.63 and 56,749.31 is: 85,123.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,433.51 : 218,148.63 = 56,749.31 : x
  2. Step 2: Convert to fraction form
    145,433.51/218,148.63 = 56,749.31/x
  3. Step 3: Cross multiply
    145,433.51x = 218,148.63 × 56,749.31
  4. Step 4: Simplify right side
    145,433.51x = 12,379,784,229.95
  5. Step 5: Solve for x
    x = 12,379,784,229.95/145,433.51
  6. Step 6: Final answer
    x = 85,123.33

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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.