Home / 162,579.80-243,869.70-74,006.30

Finding the Fourth Proportional to 162,579.80, 243,869.70 and 74,006.30

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Solution

The fourth proportional to 162,579.80, 243,869.70 and 74,006.30 is: 111,009.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,579.80 : 243,869.70 = 74,006.30 : x
  2. Step 2: Convert to fraction form
    162,579.80/243,869.70 = 74,006.30/x
  3. Step 3: Cross multiply
    162,579.80x = 243,869.70 × 74,006.30
  4. Step 4: Simplify right side
    162,579.80x = 18,047,894,179.11
  5. Step 5: Solve for x
    x = 18,047,894,179.11/162,579.80
  6. Step 6: Final answer
    x = 111,009.45

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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.