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Finding the Fourth Proportional to 101,890.40, 152,950.80 and 60,360.80

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Solution

The fourth proportional to 101,890.40, 152,950.80 and 60,360.80 is: 90,609.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,890.40 : 152,950.80 = 60,360.80 : x
  2. Step 2: Convert to fraction form
    101,890.40/152,950.80 = 60,360.80/x
  3. Step 3: Cross multiply
    101,890.40x = 152,950.80 × 60,360.80
  4. Step 4: Simplify right side
    101,890.40x = 9,232,232,648.64
  5. Step 5: Solve for x
    x = 9,232,232,648.64/101,890.40
  6. Step 6: Final answer
    x = 90,609.45

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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.