Home / 128,006.57-192,176.18-98,445.35

Finding the Fourth Proportional to 128,006.57, 192,176.18 and 98,445.35

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Solution

The fourth proportional to 128,006.57, 192,176.18 and 98,445.35 is: 147,795.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,006.57 : 192,176.18 = 98,445.35 : x
  2. Step 2: Convert to fraction form
    128,006.57/192,176.18 = 98,445.35/x
  3. Step 3: Cross multiply
    128,006.57x = 192,176.18 × 98,445.35
  4. Step 4: Simplify right side
    128,006.57x = 18,918,851,301.76
  5. Step 5: Solve for x
    x = 18,918,851,301.76/128,006.57
  6. Step 6: Final answer
    x = 147,795.94

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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.