Home / 124,890.24-187,378.56-72,345.60

Finding the Fourth Proportional to 124,890.24, 187,378.56 and 72,345.60

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Solution

The fourth proportional to 124,890.24, 187,378.56 and 72,345.60 is: 108,543.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,890.24 : 187,378.56 = 72,345.60 : x
  2. Step 2: Convert to fraction form
    124,890.24/187,378.56 = 72,345.60/x
  3. Step 3: Cross multiply
    124,890.24x = 187,378.56 × 72,345.60
  4. Step 4: Simplify right side
    124,890.24x = 13,556,014,350.34
  5. Step 5: Solve for x
    x = 13,556,014,350.34/124,890.24
  6. Step 6: Final answer
    x = 108,543.42

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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.