Home / 148,933.04-205,543.80-85,291.76

Finding the Fourth Proportional to 148,933.04, 205,543.80 and 85,291.76

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Solution

The fourth proportional to 148,933.04, 205,543.80 and 85,291.76 is: 117,711.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,933.04 : 205,543.80 = 85,291.76 : x
  2. Step 2: Convert to fraction form
    148,933.04/205,543.80 = 85,291.76/x
  3. Step 3: Cross multiply
    148,933.04x = 205,543.80 × 85,291.76
  4. Step 4: Simplify right side
    148,933.04x = 17,531,192,459.09
  5. Step 5: Solve for x
    x = 17,531,192,459.09/148,933.04
  6. Step 6: Final answer
    x = 117,711.91

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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.