Home / 142,823.74-196,960.80-85,453.87

Finding the Fourth Proportional to 142,823.74, 196,960.80 and 85,453.87

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Solution

The fourth proportional to 142,823.74, 196,960.80 and 85,453.87 is: 117,844.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,823.74 : 196,960.80 = 85,453.87 : x
  2. Step 2: Convert to fraction form
    142,823.74/196,960.80 = 85,453.87/x
  3. Step 3: Cross multiply
    142,823.74x = 196,960.80 × 85,453.87
  4. Step 4: Simplify right side
    142,823.74x = 16,831,062,598.30
  5. Step 5: Solve for x
    x = 16,831,062,598.30/142,823.74
  6. Step 6: Final answer
    x = 117,844.99

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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.