Home / 159,066.05-219,511.28-87,447.29

Finding the Fourth Proportional to 159,066.05, 219,511.28 and 87,447.29

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Solution

The fourth proportional to 159,066.05, 219,511.28 and 87,447.29 is: 120,677.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,066.05 : 219,511.28 = 87,447.29 : x
  2. Step 2: Convert to fraction form
    159,066.05/219,511.28 = 87,447.29/x
  3. Step 3: Cross multiply
    159,066.05x = 219,511.28 × 87,447.29
  4. Step 4: Simplify right side
    159,066.05x = 19,195,665,681.49
  5. Step 5: Solve for x
    x = 19,195,665,681.49/159,066.05
  6. Step 6: Final answer
    x = 120,677.33

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1.5x scale

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.