Home / 148,099.16-221,951.90-128,284.94

Finding the Fourth Proportional to 148,099.16, 221,951.90 and 128,284.94

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Solution

The fourth proportional to 148,099.16, 221,951.90 and 128,284.94 is: 192,256.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,099.16 : 221,951.90 = 128,284.94 : x
  2. Step 2: Convert to fraction form
    148,099.16/221,951.90 = 128,284.94/x
  3. Step 3: Cross multiply
    148,099.16x = 221,951.90 × 128,284.94
  4. Step 4: Simplify right side
    148,099.16x = 28,473,086,174.39
  5. Step 5: Solve for x
    x = 28,473,086,174.39/148,099.16
  6. Step 6: Final answer
    x = 192,256.91

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1.5x scale

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.