Home / 140,191.16-193,461.28-79,760.50

Finding the Fourth Proportional to 140,191.16, 193,461.28 and 79,760.50

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Solution

The fourth proportional to 140,191.16, 193,461.28 and 79,760.50 is: 110,068.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,191.16 : 193,461.28 = 79,760.50 : x
  2. Step 2: Convert to fraction form
    140,191.16/193,461.28 = 79,760.50/x
  3. Step 3: Cross multiply
    140,191.16x = 193,461.28 × 79,760.50
  4. Step 4: Simplify right side
    140,191.16x = 15,430,567,740.39
  5. Step 5: Solve for x
    x = 15,430,567,740.39/140,191.16
  6. Step 6: Final answer
    x = 110,068.05

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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.