Home / 109,055.02-150,503.85-66,621.55

Finding the Fourth Proportional to 109,055.02, 150,503.85 and 66,621.55

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Solution

The fourth proportional to 109,055.02, 150,503.85 and 66,621.55 is: 91,942.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,055.02 : 150,503.85 = 66,621.55 : x
  2. Step 2: Convert to fraction form
    109,055.02/150,503.85 = 66,621.55/x
  3. Step 3: Cross multiply
    109,055.02x = 150,503.85 × 66,621.55
  4. Step 4: Simplify right side
    109,055.02x = 10,026,799,767.97
  5. Step 5: Solve for x
    x = 10,026,799,767.97/109,055.02
  6. Step 6: Final answer
    x = 91,942.58

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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.