Home / 112,030.64-154,553.71-66,683.20

Finding the Fourth Proportional to 112,030.64, 154,553.71 and 66,683.20

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Solution

The fourth proportional to 112,030.64, 154,553.71 and 66,683.20 is: 91,993.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,030.64 : 154,553.71 = 66,683.20 : x
  2. Step 2: Convert to fraction form
    112,030.64/154,553.71 = 66,683.20/x
  3. Step 3: Cross multiply
    112,030.64x = 154,553.71 × 66,683.20
  4. Step 4: Simplify right side
    112,030.64x = 10,306,135,954.67
  5. Step 5: Solve for x
    x = 10,306,135,954.67/112,030.64
  6. Step 6: Final answer
    x = 91,993.90

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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.