Home / 162,179.12-242,929.68-130,417.40

Finding the Fourth Proportional to 162,179.12, 242,929.68 and 130,417.40

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Solution

The fourth proportional to 162,179.12, 242,929.68 and 130,417.40 is: 195,353.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,179.12 : 242,929.68 = 130,417.40 : x
  2. Step 2: Convert to fraction form
    162,179.12/242,929.68 = 130,417.40/x
  3. Step 3: Cross multiply
    162,179.12x = 242,929.68 × 130,417.40
  4. Step 4: Simplify right side
    162,179.12x = 31,682,257,248.43
  5. Step 5: Solve for x
    x = 31,682,257,248.43/162,179.12
  6. Step 6: Final answer
    x = 195,353.49

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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.