Home / 161,715.60-242,573.40-73,069.20

Finding the Fourth Proportional to 161,715.60, 242,573.40 and 73,069.20

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Solution

The fourth proportional to 161,715.60, 242,573.40 and 73,069.20 is: 109,603.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,715.60 : 242,573.40 = 73,069.20 : x
  2. Step 2: Convert to fraction form
    161,715.60/242,573.40 = 73,069.20/x
  3. Step 3: Cross multiply
    161,715.60x = 242,573.40 × 73,069.20
  4. Step 4: Simplify right side
    161,715.60x = 17,724,644,279.28
  5. Step 5: Solve for x
    x = 17,724,644,279.28/161,715.60
  6. Step 6: Final answer
    x = 109,603.80

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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.