Home / 118,346.36-163,268.43-72,371.18

Finding the Fourth Proportional to 118,346.36, 163,268.43 and 72,371.18

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Solution

The fourth proportional to 118,346.36, 163,268.43 and 72,371.18 is: 99,841.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,346.36 : 163,268.43 = 72,371.18 : x
  2. Step 2: Convert to fraction form
    118,346.36/163,268.43 = 72,371.18/x
  3. Step 3: Cross multiply
    118,346.36x = 163,268.43 × 72,371.18
  4. Step 4: Simplify right side
    118,346.36x = 11,815,927,848.11
  5. Step 5: Solve for x
    x = 11,815,927,848.11/118,346.36
  6. Step 6: Final answer
    x = 99,841.92

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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.