Home / 135,615.65-187,160.67-75,205.23

Finding the Fourth Proportional to 135,615.65, 187,160.67 and 75,205.23

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Solution

The fourth proportional to 135,615.65, 187,160.67 and 75,205.23 is: 103,789.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,615.65 : 187,160.67 = 75,205.23 : x
  2. Step 2: Convert to fraction form
    135,615.65/187,160.67 = 75,205.23/x
  3. Step 3: Cross multiply
    135,615.65x = 187,160.67 × 75,205.23
  4. Step 4: Simplify right side
    135,615.65x = 14,075,461,234.30
  5. Step 5: Solve for x
    x = 14,075,461,234.30/135,615.65
  6. Step 6: Final answer
    x = 103,789.36

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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.