Home / 125,325.42-187,985.70-30,555.96

Finding the Fourth Proportional to 125,325.42, 187,985.70 and 30,555.96

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Solution

The fourth proportional to 125,325.42, 187,985.70 and 30,555.96 is: 45,833.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,325.42 : 187,985.70 = 30,555.96 : x
  2. Step 2: Convert to fraction form
    125,325.42/187,985.70 = 30,555.96/x
  3. Step 3: Cross multiply
    125,325.42x = 187,985.70 × 30,555.96
  4. Step 4: Simplify right side
    125,325.42x = 5,744,083,529.77
  5. Step 5: Solve for x
    x = 5,744,083,529.77/125,325.42
  6. Step 6: Final answer
    x = 45,833.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.