Home / 100,868.67-151,259.23-34,290.91

Finding the Fourth Proportional to 100,868.67, 151,259.23 and 34,290.91

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Solution

The fourth proportional to 100,868.67, 151,259.23 and 34,290.91 is: 51,421.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,868.67 : 151,259.23 = 34,290.91 : x
  2. Step 2: Convert to fraction form
    100,868.67/151,259.23 = 34,290.91/x
  3. Step 3: Cross multiply
    100,868.67x = 151,259.23 × 34,290.91
  4. Step 4: Simplify right side
    100,868.67x = 5,186,816,642.60
  5. Step 5: Solve for x
    x = 5,186,816,642.60/100,868.67
  6. Step 6: Final answer
    x = 51,421.48

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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.