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Finding the Fourth Proportional to 161,852.80, 242,721.60 and 73,148.80

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Solution

The fourth proportional to 161,852.80, 242,721.60 and 73,148.80 is: 109,697.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,852.80 : 242,721.60 = 73,148.80 : x
  2. Step 2: Convert to fraction form
    161,852.80/242,721.60 = 73,148.80/x
  3. Step 3: Cross multiply
    161,852.80x = 242,721.60 × 73,148.80
  4. Step 4: Simplify right side
    161,852.80x = 17,754,793,774.08
  5. Step 5: Solve for x
    x = 17,754,793,774.08/161,852.80
  6. Step 6: Final answer
    x = 109,697.17

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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.