Home / 119,981.12-179,852.31-56,689.11

Finding the Fourth Proportional to 119,981.12, 179,852.31 and 56,689.11

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Solution

The fourth proportional to 119,981.12, 179,852.31 and 56,689.11 is: 84,977.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,981.12 : 179,852.31 = 56,689.11 : x
  2. Step 2: Convert to fraction form
    119,981.12/179,852.31 = 56,689.11/x
  3. Step 3: Cross multiply
    119,981.12x = 179,852.31 × 56,689.11
  4. Step 4: Simplify right side
    119,981.12x = 10,195,667,385.34
  5. Step 5: Solve for x
    x = 10,195,667,385.34/119,981.12
  6. Step 6: Final answer
    x = 84,977.27

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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.