Home / 140,000.46-193,196.43-76,339.50

Finding the Fourth Proportional to 140,000.46, 193,196.43 and 76,339.50

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Solution

The fourth proportional to 140,000.46, 193,196.43 and 76,339.50 is: 105,346.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,000.46 : 193,196.43 = 76,339.50 : x
  2. Step 2: Convert to fraction form
    140,000.46/193,196.43 = 76,339.50/x
  3. Step 3: Cross multiply
    140,000.46x = 193,196.43 × 76,339.50
  4. Step 4: Simplify right side
    140,000.46x = 14,748,518,867.99
  5. Step 5: Solve for x
    x = 14,748,518,867.99/140,000.46
  6. Step 6: Final answer
    x = 105,346.22

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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.