Home / 123,147.71-184,444.74-74,985.86

Finding the Fourth Proportional to 123,147.71, 184,444.74 and 74,985.86

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Solution

The fourth proportional to 123,147.71, 184,444.74 and 74,985.86 is: 112,310.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,147.71 : 184,444.74 = 74,985.86 : x
  2. Step 2: Convert to fraction form
    123,147.71/184,444.74 = 74,985.86/x
  3. Step 3: Cross multiply
    123,147.71x = 184,444.74 × 74,985.86
  4. Step 4: Simplify right side
    123,147.71x = 13,830,746,529.15
  5. Step 5: Solve for x
    x = 13,830,746,529.15/123,147.71
  6. Step 6: Final answer
    x = 112,310.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.