Home / 122,374.14-168,899.43-79,969.02

Finding the Fourth Proportional to 122,374.14, 168,899.43 and 79,969.02

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Solution

The fourth proportional to 122,374.14, 168,899.43 and 79,969.02 is: 110,372.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,374.14 : 168,899.43 = 79,969.02 : x
  2. Step 2: Convert to fraction form
    122,374.14/168,899.43 = 79,969.02/x
  3. Step 3: Cross multiply
    122,374.14x = 168,899.43 × 79,969.02
  4. Step 4: Simplify right side
    122,374.14x = 13,506,721,895.66
  5. Step 5: Solve for x
    x = 13,506,721,895.66/122,374.14
  6. Step 6: Final answer
    x = 110,372.35

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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.