Home / 121,925.04-168,248.64-68,200.86

Finding the Fourth Proportional to 121,925.04, 168,248.64 and 68,200.86

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Solution

The fourth proportional to 121,925.04, 168,248.64 and 68,200.86 is: 94,112.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,925.04 : 168,248.64 = 68,200.86 : x
  2. Step 2: Convert to fraction form
    121,925.04/168,248.64 = 68,200.86/x
  3. Step 3: Cross multiply
    121,925.04x = 168,248.64 × 68,200.86
  4. Step 4: Simplify right side
    121,925.04x = 11,474,701,941.83
  5. Step 5: Solve for x
    x = 11,474,701,941.83/121,925.04
  6. Step 6: Final answer
    x = 94,112.76

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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.