Home / 148,530.80-204,985.46-81,475.76

Finding the Fourth Proportional to 148,530.80, 204,985.46 and 81,475.76

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Solution

The fourth proportional to 148,530.80, 204,985.46 and 81,475.76 is: 112,443.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,530.80 : 204,985.46 = 81,475.76 : x
  2. Step 2: Convert to fraction form
    148,530.80/204,985.46 = 81,475.76/x
  3. Step 3: Cross multiply
    148,530.80x = 204,985.46 × 81,475.76
  4. Step 4: Simplify right side
    148,530.80x = 16,701,346,858.60
  5. Step 5: Solve for x
    x = 16,701,346,858.60/148,530.80
  6. Step 6: Final answer
    x = 112,443.66

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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.