Home / 103,136.14-142,315.14-62,835.28

Finding the Fourth Proportional to 103,136.14, 142,315.14 and 62,835.28

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Solution

The fourth proportional to 103,136.14, 142,315.14 and 62,835.28 is: 86,704.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,136.14 : 142,315.14 = 62,835.28 : x
  2. Step 2: Convert to fraction form
    103,136.14/142,315.14 = 62,835.28/x
  3. Step 3: Cross multiply
    103,136.14x = 142,315.14 × 62,835.28
  4. Step 4: Simplify right side
    103,136.14x = 8,942,411,670.14
  5. Step 5: Solve for x
    x = 8,942,411,670.14/103,136.14
  6. Step 6: Final answer
    x = 86,704.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.