Home / 128,117.53-192,293.48-64,981.25

Finding the Fourth Proportional to 128,117.53, 192,293.48 and 64,981.25

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Solution

The fourth proportional to 128,117.53, 192,293.48 and 64,981.25 is: 97,531.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,117.53 : 192,293.48 = 64,981.25 : x
  2. Step 2: Convert to fraction form
    128,117.53/192,293.48 = 64,981.25/x
  3. Step 3: Cross multiply
    128,117.53x = 192,293.48 × 64,981.25
  4. Step 4: Simplify right side
    128,117.53x = 12,495,469,898.24
  5. Step 5: Solve for x
    x = 12,495,469,898.24/128,117.53
  6. Step 6: Final answer
    x = 97,531.31

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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.