Home / 189,943.40-284,915.10-159,530.60

Finding the Fourth Proportional to 189,943.40, 284,915.10 and 159,530.60

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Solution

The fourth proportional to 189,943.40, 284,915.10 and 159,530.60 is: 239,295.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,943.40 : 284,915.10 = 159,530.60 : x
  2. Step 2: Convert to fraction form
    189,943.40/284,915.10 = 159,530.60/x
  3. Step 3: Cross multiply
    189,943.40x = 284,915.10 × 159,530.60
  4. Step 4: Simplify right side
    189,943.40x = 45,452,676,852.06
  5. Step 5: Solve for x
    x = 45,452,676,852.06/189,943.40
  6. Step 6: Final answer
    x = 239,295.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.