Home / 145,244.39-217,915.79-74,196.96

Finding the Fourth Proportional to 145,244.39, 217,915.79 and 74,196.96

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Solution

The fourth proportional to 145,244.39, 217,915.79 and 74,196.96 is: 111,320.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,244.39 : 217,915.79 = 74,196.96 : x
  2. Step 2: Convert to fraction form
    145,244.39/217,915.79 = 74,196.96/x
  3. Step 3: Cross multiply
    145,244.39x = 217,915.79 × 74,196.96
  4. Step 4: Simplify right side
    145,244.39x = 16,168,688,783.01
  5. Step 5: Solve for x
    x = 16,168,688,783.01/145,244.39
  6. Step 6: Final answer
    x = 111,320.58

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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.