Home / 150,915.87-208,218.47-90,464.45

Finding the Fourth Proportional to 150,915.87, 208,218.47 and 90,464.45

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Solution

The fourth proportional to 150,915.87, 208,218.47 and 90,464.45 is: 124,813.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,915.87 : 208,218.47 = 90,464.45 : x
  2. Step 2: Convert to fraction form
    150,915.87/208,218.47 = 90,464.45/x
  3. Step 3: Cross multiply
    150,915.87x = 208,218.47 × 90,464.45
  4. Step 4: Simplify right side
    150,915.87x = 18,836,369,955.90
  5. Step 5: Solve for x
    x = 18,836,369,955.90/150,915.87
  6. Step 6: Final answer
    x = 124,813.72

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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.