Home / 140,153.90-193,409.69-76,492.16

Finding the Fourth Proportional to 140,153.90, 193,409.69 and 76,492.16

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Solution

The fourth proportional to 140,153.90, 193,409.69 and 76,492.16 is: 105,557.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,153.90 : 193,409.69 = 76,492.16 : x
  2. Step 2: Convert to fraction form
    140,153.90/193,409.69 = 76,492.16/x
  3. Step 3: Cross multiply
    140,153.90x = 193,409.69 × 76,492.16
  4. Step 4: Simplify right side
    140,153.90x = 14,794,324,177.21
  5. Step 5: Solve for x
    x = 14,794,324,177.21/140,153.90
  6. Step 6: Final answer
    x = 105,557.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.