Home / 127,408.65-191,136.04-52,487.16

Finding the Fourth Proportional to 127,408.65, 191,136.04 and 52,487.16

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Solution

The fourth proportional to 127,408.65, 191,136.04 and 52,487.16 is: 78,740.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,408.65 : 191,136.04 = 52,487.16 : x
  2. Step 2: Convert to fraction form
    127,408.65/191,136.04 = 52,487.16/x
  3. Step 3: Cross multiply
    127,408.65x = 191,136.04 × 52,487.16
  4. Step 4: Simplify right side
    127,408.65x = 10,032,187,065.27
  5. Step 5: Solve for x
    x = 10,032,187,065.27/127,408.65
  6. Step 6: Final answer
    x = 78,740.24

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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.