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Finding the Fourth Proportional to 150,415.84, 207,573.78 and 89,988.94

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Solution

The fourth proportional to 150,415.84, 207,573.78 and 89,988.94 is: 124,184.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,415.84 : 207,573.78 = 89,988.94 : x
  2. Step 2: Convert to fraction form
    150,415.84/207,573.78 = 89,988.94/x
  3. Step 3: Cross multiply
    150,415.84x = 207,573.78 × 89,988.94
  4. Step 4: Simplify right side
    150,415.84x = 18,679,344,433.99
  5. Step 5: Solve for x
    x = 18,679,344,433.99/150,415.84
  6. Step 6: Final answer
    x = 124,184.69

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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.