Home / 112,308.93-154,985.13-61,321.49

Finding the Fourth Proportional to 112,308.93, 154,985.13 and 61,321.49

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Solution

The fourth proportional to 112,308.93, 154,985.13 and 61,321.49 is: 84,623.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,308.93 : 154,985.13 = 61,321.49 : x
  2. Step 2: Convert to fraction form
    112,308.93/154,985.13 = 61,321.49/x
  3. Step 3: Cross multiply
    112,308.93x = 154,985.13 × 61,321.49
  4. Step 4: Simplify right side
    112,308.93x = 9,503,919,716.86
  5. Step 5: Solve for x
    x = 9,503,919,716.86/112,308.93
  6. Step 6: Final answer
    x = 84,623.01

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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.