Home / 140,281.17-193,588.02-76,619.12

Finding the Fourth Proportional to 140,281.17, 193,588.02 and 76,619.12

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Solution

The fourth proportional to 140,281.17, 193,588.02 and 76,619.12 is: 105,734.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,281.17 : 193,588.02 = 76,619.12 : x
  2. Step 2: Convert to fraction form
    140,281.17/193,588.02 = 76,619.12/x
  3. Step 3: Cross multiply
    140,281.17x = 193,588.02 × 76,619.12
  4. Step 4: Simplify right side
    140,281.17x = 14,832,543,855.93
  5. Step 5: Solve for x
    x = 14,832,543,855.93/140,281.17
  6. Step 6: Final answer
    x = 105,734.39

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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.