Home / 148,100.16-221,953.41-128,285.94

Finding the Fourth Proportional to 148,100.16, 221,953.41 and 128,285.94

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Solution

The fourth proportional to 148,100.16, 221,953.41 and 128,285.94 is: 192,258.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,100.16 : 221,953.41 = 128,285.94 : x
  2. Step 2: Convert to fraction form
    148,100.16/221,953.41 = 128,285.94/x
  3. Step 3: Cross multiply
    148,100.16x = 221,953.41 × 128,285.94
  4. Step 4: Simplify right side
    148,100.16x = 28,473,501,838.06
  5. Step 5: Solve for x
    x = 28,473,501,838.06/148,100.16
  6. Step 6: Final answer
    x = 192,258.41

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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.