Home / 91,608.36-137,209.53-70,392.24

Finding the Fourth Proportional to 91,608.36, 137,209.53 and 70,392.24

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Solution

The fourth proportional to 91,608.36, 137,209.53 and 70,392.24 is: 105,432.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,608.36 : 137,209.53 = 70,392.24 : x
  2. Step 2: Convert to fraction form
    91,608.36/137,209.53 = 70,392.24/x
  3. Step 3: Cross multiply
    91,608.36x = 137,209.53 × 70,392.24
  4. Step 4: Simplify right side
    91,608.36x = 9,658,486,166.05
  5. Step 5: Solve for x
    x = 9,658,486,166.05/91,608.36
  6. Step 6: Final answer
    x = 105,432.37

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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.