Home / 103,415.76-142,710.60-58,703.44

Finding the Fourth Proportional to 103,415.76, 142,710.60 and 58,703.44

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Solution

The fourth proportional to 103,415.76, 142,710.60 and 58,703.44 is: 81,008.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,415.76 : 142,710.60 = 58,703.44 : x
  2. Step 2: Convert to fraction form
    103,415.76/142,710.60 = 58,703.44/x
  3. Step 3: Cross multiply
    103,415.76x = 142,710.60 × 58,703.44
  4. Step 4: Simplify right side
    103,415.76x = 8,377,603,144.46
  5. Step 5: Solve for x
    x = 8,377,603,144.46/103,415.76
  6. Step 6: Final answer
    x = 81,008.96

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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.