Home / 123,143.04-169,941.60-68,697.36

Finding the Fourth Proportional to 123,143.04, 169,941.60 and 68,697.36

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Solution

The fourth proportional to 123,143.04, 169,941.60 and 68,697.36 is: 94,804.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,143.04 : 169,941.60 = 68,697.36 : x
  2. Step 2: Convert to fraction form
    123,143.04/169,941.60 = 68,697.36/x
  3. Step 3: Cross multiply
    123,143.04x = 169,941.60 × 68,697.36
  4. Step 4: Simplify right side
    123,143.04x = 11,674,539,274.18
  5. Step 5: Solve for x
    x = 11,674,539,274.18/123,143.04
  6. Step 6: Final answer
    x = 94,804.70

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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.