Home / 285,939.81-428,815.76-96,349.14

Finding the Fourth Proportional to 285,939.81, 428,815.76 and 96,349.14

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Solution

The fourth proportional to 285,939.81, 428,815.76 and 96,349.14 is: 144,492.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,939.81 : 428,815.76 = 96,349.14 : x
  2. Step 2: Convert to fraction form
    285,939.81/428,815.76 = 96,349.14/x
  3. Step 3: Cross multiply
    285,939.81x = 428,815.76 × 96,349.14
  4. Step 4: Simplify right side
    285,939.81x = 41,316,029,212.70
  5. Step 5: Solve for x
    x = 41,316,029,212.70/285,939.81
  6. Step 6: Final answer
    x = 144,492.05

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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.