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Finding the Fourth Proportional to 124,890.69, 187,323.69 and 40,647.45

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Solution

The fourth proportional to 124,890.69, 187,323.69 and 40,647.45 is: 60,967.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,890.69 : 187,323.69 = 40,647.45 : x
  2. Step 2: Convert to fraction form
    124,890.69/187,323.69 = 40,647.45/x
  3. Step 3: Cross multiply
    124,890.69x = 187,323.69 × 40,647.45
  4. Step 4: Simplify right side
    124,890.69x = 7,614,230,323.09
  5. Step 5: Solve for x
    x = 7,614,230,323.09/124,890.69
  6. Step 6: Final answer
    x = 60,967.16

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1.5x scale

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.