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Finding the Fourth Proportional to 150,630.45, 207,852.45 and 90,192.71

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Solution

The fourth proportional to 150,630.45, 207,852.45 and 90,192.71 is: 124,455.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,630.45 : 207,852.45 = 90,192.71 : x
  2. Step 2: Convert to fraction form
    150,630.45/207,852.45 = 90,192.71/x
  3. Step 3: Cross multiply
    150,630.45x = 207,852.45 × 90,192.71
  4. Step 4: Simplify right side
    150,630.45x = 18,746,774,706.38
  5. Step 5: Solve for x
    x = 18,746,774,706.38/150,630.45
  6. Step 6: Final answer
    x = 124,455.41

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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.