Home / 161,916.03-242,870.40-73,145.70

Finding the Fourth Proportional to 161,916.03, 242,870.40 and 73,145.70

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Solution

The fourth proportional to 161,916.03, 242,870.40 and 73,145.70 is: 109,716.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,916.03 : 242,870.40 = 73,145.70 : x
  2. Step 2: Convert to fraction form
    161,916.03/242,870.40 = 73,145.70/x
  3. Step 3: Cross multiply
    161,916.03x = 242,870.40 × 73,145.70
  4. Step 4: Simplify right side
    161,916.03x = 17,764,925,417.28
  5. Step 5: Solve for x
    x = 17,764,925,417.28/161,916.03
  6. Step 6: Final answer
    x = 109,716.90

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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.