Home / 148,911.40-205,477.86-84,379.24

Finding the Fourth Proportional to 148,911.40, 205,477.86 and 84,379.24

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Solution

The fourth proportional to 148,911.40, 205,477.86 and 84,379.24 is: 116,432.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,911.40 : 205,477.86 = 84,379.24 : x
  2. Step 2: Convert to fraction form
    148,911.40/205,477.86 = 84,379.24/x
  3. Step 3: Cross multiply
    148,911.40x = 205,477.86 × 84,379.24
  4. Step 4: Simplify right side
    148,911.40x = 17,338,065,663.63
  5. Step 5: Solve for x
    x = 17,338,065,663.63/148,911.40
  6. Step 6: Final answer
    x = 116,432.09

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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.