Home / 103,090.45-142,264.60-62,804.18

Finding the Fourth Proportional to 103,090.45, 142,264.60 and 62,804.18

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Solution

The fourth proportional to 103,090.45, 142,264.60 and 62,804.18 is: 86,669.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,090.45 : 142,264.60 = 62,804.18 : x
  2. Step 2: Convert to fraction form
    103,090.45/142,264.60 = 62,804.18/x
  3. Step 3: Cross multiply
    103,090.45x = 142,264.60 × 62,804.18
  4. Step 4: Simplify right side
    103,090.45x = 8,934,811,744.68
  5. Step 5: Solve for x
    x = 8,934,811,744.68/103,090.45
  6. Step 6: Final answer
    x = 86,669.64

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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.