Home / 140,215.76-193,492.68-76,552.40

Finding the Fourth Proportional to 140,215.76, 193,492.68 and 76,552.40

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Solution

The fourth proportional to 140,215.76, 193,492.68 and 76,552.40 is: 105,639.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,215.76 : 193,492.68 = 76,552.40 : x
  2. Step 2: Convert to fraction form
    140,215.76/193,492.68 = 76,552.40/x
  3. Step 3: Cross multiply
    140,215.76x = 193,492.68 × 76,552.40
  4. Step 4: Simplify right side
    140,215.76x = 14,812,329,036.43
  5. Step 5: Solve for x
    x = 14,812,329,036.43/140,215.76
  6. Step 6: Final answer
    x = 105,639.54

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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.