Home / 148,817.01-205,345.94-85,142.91

Finding the Fourth Proportional to 148,817.01, 205,345.94 and 85,142.91

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Solution

The fourth proportional to 148,817.01, 205,345.94 and 85,142.91 is: 117,484.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,817.01 : 205,345.94 = 85,142.91 : x
  2. Step 2: Convert to fraction form
    148,817.01/205,345.94 = 85,142.91/x
  3. Step 3: Cross multiply
    148,817.01x = 205,345.94 × 85,142.91
  4. Step 4: Simplify right side
    148,817.01x = 17,483,750,462.57
  5. Step 5: Solve for x
    x = 17,483,750,462.57/148,817.01
  6. Step 6: Final answer
    x = 117,484.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.