Home / 159,070.67-219,511.92-87,450.17

Finding the Fourth Proportional to 159,070.67, 219,511.92 and 87,450.17

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Solution

The fourth proportional to 159,070.67, 219,511.92 and 87,450.17 is: 120,678.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,070.67 : 219,511.92 = 87,450.17 : x
  2. Step 2: Convert to fraction form
    159,070.67/219,511.92 = 87,450.17/x
  3. Step 3: Cross multiply
    159,070.67x = 219,511.92 × 87,450.17
  4. Step 4: Simplify right side
    159,070.67x = 19,196,353,951.40
  5. Step 5: Solve for x
    x = 19,196,353,951.40/159,070.67
  6. Step 6: Final answer
    x = 120,678.15

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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.