Home / 161,709.40-242,564.10-122,051.80

Finding the Fourth Proportional to 161,709.40, 242,564.10 and 122,051.80

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Solution

The fourth proportional to 161,709.40, 242,564.10 and 122,051.80 is: 183,077.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,709.40 : 242,564.10 = 122,051.80 : x
  2. Step 2: Convert to fraction form
    161,709.40/242,564.10 = 122,051.80/x
  3. Step 3: Cross multiply
    161,709.40x = 242,564.10 × 122,051.80
  4. Step 4: Simplify right side
    161,709.40x = 29,605,385,020.38
  5. Step 5: Solve for x
    x = 29,605,385,020.38/161,709.40
  6. Step 6: Final answer
    x = 183,077.70

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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.