Home / 424,630.96-637,056.64-125,122.16

Finding the Fourth Proportional to 424,630.96, 637,056.64 and 125,122.16

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Solution

The fourth proportional to 424,630.96, 637,056.64 and 125,122.16 is: 187,715.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,630.96 : 637,056.64 = 125,122.16 : x
  2. Step 2: Convert to fraction form
    424,630.96/637,056.64 = 125,122.16/x
  3. Step 3: Cross multiply
    424,630.96x = 637,056.64 × 125,122.16
  4. Step 4: Simplify right side
    424,630.96x = 79,709,902,839.14
  5. Step 5: Solve for x
    x = 79,709,902,839.14/424,630.96
  6. Step 6: Final answer
    x = 187,715.71

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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.