Home / 150,106.98-207,113.73-89,665.80

Finding the Fourth Proportional to 150,106.98, 207,113.73 and 89,665.80

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Solution

The fourth proportional to 150,106.98, 207,113.73 and 89,665.80 is: 123,718.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,106.98 : 207,113.73 = 89,665.80 : x
  2. Step 2: Convert to fraction form
    150,106.98/207,113.73 = 89,665.80/x
  3. Step 3: Cross multiply
    150,106.98x = 207,113.73 × 89,665.80
  4. Step 4: Simplify right side
    150,106.98x = 18,571,017,178.51
  5. Step 5: Solve for x
    x = 18,571,017,178.51/150,106.98
  6. Step 6: Final answer
    x = 123,718.54

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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.