Home / 145,578.46-218,256.72-45,681.04

Finding the Fourth Proportional to 145,578.46, 218,256.72 and 45,681.04

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Solution

The fourth proportional to 145,578.46, 218,256.72 and 45,681.04 is: 68,486.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,578.46 : 218,256.72 = 45,681.04 : x
  2. Step 2: Convert to fraction form
    145,578.46/218,256.72 = 45,681.04/x
  3. Step 3: Cross multiply
    145,578.46x = 218,256.72 × 45,681.04
  4. Step 4: Simplify right side
    145,578.46x = 9,970,193,956.59
  5. Step 5: Solve for x
    x = 9,970,193,956.59/145,578.46
  6. Step 6: Final answer
    x = 68,486.74

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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.