Home / 142,158.60-196,143.24-96,302.64

Finding the Fourth Proportional to 142,158.60, 196,143.24 and 96,302.64

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Solution

The fourth proportional to 142,158.60, 196,143.24 and 96,302.64 is: 132,873.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,158.60 : 196,143.24 = 96,302.64 : x
  2. Step 2: Convert to fraction form
    142,158.60/196,143.24 = 96,302.64/x
  3. Step 3: Cross multiply
    142,158.60x = 196,143.24 × 96,302.64
  4. Step 4: Simplify right side
    142,158.60x = 18,889,111,830.15
  5. Step 5: Solve for x
    x = 18,889,111,830.15/142,158.60
  6. Step 6: Final answer
    x = 132,873.51

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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.