Home / 140,457.32-193,783.62-79,985.09

Finding the Fourth Proportional to 140,457.32, 193,783.62 and 79,985.09

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Solution

The fourth proportional to 140,457.32, 193,783.62 and 79,985.09 is: 110,352.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,457.32 : 193,783.62 = 79,985.09 : x
  2. Step 2: Convert to fraction form
    140,457.32/193,783.62 = 79,985.09/x
  3. Step 3: Cross multiply
    140,457.32x = 193,783.62 × 79,985.09
  4. Step 4: Simplify right side
    140,457.32x = 15,499,799,859.48
  5. Step 5: Solve for x
    x = 15,499,799,859.48/140,457.32
  6. Step 6: Final answer
    x = 110,352.38

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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.