Home / 93,028.68-128,232.20-85,306.02

Finding the Fourth Proportional to 93,028.68, 128,232.20 and 85,306.02

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Solution

The fourth proportional to 93,028.68, 128,232.20 and 85,306.02 is: 117,587.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,028.68 : 128,232.20 = 85,306.02 : x
  2. Step 2: Convert to fraction form
    93,028.68/128,232.20 = 85,306.02/x
  3. Step 3: Cross multiply
    93,028.68x = 128,232.20 × 85,306.02
  4. Step 4: Simplify right side
    93,028.68x = 10,938,978,617.84
  5. Step 5: Solve for x
    x = 10,938,978,617.84/93,028.68
  6. Step 6: Final answer
    x = 117,587.16

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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.