Home / 145,718.64-218,578.37-40,537.71

Finding the Fourth Proportional to 145,718.64, 218,578.37 and 40,537.71

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Solution

The fourth proportional to 145,718.64, 218,578.37 and 40,537.71 is: 60,806.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,718.64 : 218,578.37 = 40,537.71 : x
  2. Step 2: Convert to fraction form
    145,718.64/218,578.37 = 40,537.71/x
  3. Step 3: Cross multiply
    145,718.64x = 218,578.37 × 40,537.71
  4. Step 4: Simplify right side
    145,718.64x = 8,860,666,372.64
  5. Step 5: Solve for x
    x = 8,860,666,372.64/145,718.64
  6. Step 6: Final answer
    x = 60,806.68

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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.