Home / 287,848.11-431,800.96-88,166.19

Finding the Fourth Proportional to 287,848.11, 431,800.96 and 88,166.19

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Solution

The fourth proportional to 287,848.11, 431,800.96 and 88,166.19 is: 132,258.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,848.11 : 431,800.96 = 88,166.19 : x
  2. Step 2: Convert to fraction form
    287,848.11/431,800.96 = 88,166.19/x
  3. Step 3: Cross multiply
    287,848.11x = 431,800.96 × 88,166.19
  4. Step 4: Simplify right side
    287,848.11x = 38,070,243,102.12
  5. Step 5: Solve for x
    x = 38,070,243,102.12/287,848.11
  6. Step 6: Final answer
    x = 132,258.10

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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.