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Finding the Fourth Proportional to 148,685.58, 205,189.16 and 84,154.82

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Solution

The fourth proportional to 148,685.58, 205,189.16 and 84,154.82 is: 116,135.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,685.58 : 205,189.16 = 84,154.82 : x
  2. Step 2: Convert to fraction form
    148,685.58/205,189.16 = 84,154.82/x
  3. Step 3: Cross multiply
    148,685.58x = 205,189.16 × 84,154.82
  4. Step 4: Simplify right side
    148,685.58x = 17,267,655,379.03
  5. Step 5: Solve for x
    x = 17,267,655,379.03/148,685.58
  6. Step 6: Final answer
    x = 116,135.37

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1.5x scale

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.