Home / 142,889.40-196,607.88-117,301.68

Finding the Fourth Proportional to 142,889.40, 196,607.88 and 117,301.68

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Solution

The fourth proportional to 142,889.40, 196,607.88 and 117,301.68 is: 161,400.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,889.40 : 196,607.88 = 117,301.68 : x
  2. Step 2: Convert to fraction form
    142,889.40/196,607.88 = 117,301.68/x
  3. Step 3: Cross multiply
    142,889.40x = 196,607.88 × 117,301.68
  4. Step 4: Simplify right side
    142,889.40x = 23,062,434,625.24
  5. Step 5: Solve for x
    x = 23,062,434,625.24/142,889.40
  6. Step 6: Final answer
    x = 161,400.60

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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.