Home / 103,665.48-143,056.63-58,343.41

Finding the Fourth Proportional to 103,665.48, 143,056.63 and 58,343.41

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Solution

The fourth proportional to 103,665.48, 143,056.63 and 58,343.41 is: 80,512.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,665.48 : 143,056.63 = 58,343.41 : x
  2. Step 2: Convert to fraction form
    103,665.48/143,056.63 = 58,343.41/x
  3. Step 3: Cross multiply
    103,665.48x = 143,056.63 × 58,343.41
  4. Step 4: Simplify right side
    103,665.48x = 8,346,411,617.31
  5. Step 5: Solve for x
    x = 8,346,411,617.31/103,665.48
  6. Step 6: Final answer
    x = 80,512.93

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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.