Home / 103,390.36-142,683.10-58,682.52

Finding the Fourth Proportional to 103,390.36, 142,683.10 and 58,682.52

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Solution

The fourth proportional to 103,390.36, 142,683.10 and 58,682.52 is: 80,984.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,390.36 : 142,683.10 = 58,682.52 : x
  2. Step 2: Convert to fraction form
    103,390.36/142,683.10 = 58,682.52/x
  3. Step 3: Cross multiply
    103,390.36x = 142,683.10 × 58,682.52
  4. Step 4: Simplify right side
    103,390.36x = 8,373,003,869.41
  5. Step 5: Solve for x
    x = 8,373,003,869.41/103,390.36
  6. Step 6: Final answer
    x = 80,984.38

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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.