Home / 102,035.82-140,802.60-56,710.86

Finding the Fourth Proportional to 102,035.82, 140,802.60 and 56,710.86

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Solution

The fourth proportional to 102,035.82, 140,802.60 and 56,710.86 is: 78,257.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,035.82 : 140,802.60 = 56,710.86 : x
  2. Step 2: Convert to fraction form
    102,035.82/140,802.60 = 56,710.86/x
  3. Step 3: Cross multiply
    102,035.82x = 140,802.60 × 56,710.86
  4. Step 4: Simplify right side
    102,035.82x = 7,985,036,536.24
  5. Step 5: Solve for x
    x = 7,985,036,536.24/102,035.82
  6. Step 6: Final answer
    x = 78,257.19

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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.