Home / 145,743.70-218,615.55-52,258.90

Finding the Fourth Proportional to 145,743.70, 218,615.55 and 52,258.90

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Solution

The fourth proportional to 145,743.70, 218,615.55 and 52,258.90 is: 78,388.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,743.70 : 218,615.55 = 52,258.90 : x
  2. Step 2: Convert to fraction form
    145,743.70/218,615.55 = 52,258.90/x
  3. Step 3: Cross multiply
    145,743.70x = 218,615.55 × 52,258.90
  4. Step 4: Simplify right side
    145,743.70x = 11,424,608,165.90
  5. Step 5: Solve for x
    x = 11,424,608,165.90/145,743.70
  6. Step 6: Final answer
    x = 78,388.35

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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.