Home / 91,222.02-136,880.37-69,028.74

Finding the Fourth Proportional to 91,222.02, 136,880.37 and 69,028.74

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Solution

The fourth proportional to 91,222.02, 136,880.37 and 69,028.74 is: 103,578.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,222.02 : 136,880.37 = 69,028.74 : x
  2. Step 2: Convert to fraction form
    91,222.02/136,880.37 = 69,028.74/x
  3. Step 3: Cross multiply
    91,222.02x = 136,880.37 × 69,028.74
  4. Step 4: Simplify right side
    91,222.02x = 9,448,679,471.83
  5. Step 5: Solve for x
    x = 9,448,679,471.83/91,222.02
  6. Step 6: Final answer
    x = 103,578.93

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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.