Home / 140,457.51-193,783.88-79,985.28

Finding the Fourth Proportional to 140,457.51, 193,783.88 and 79,985.28

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Solution

The fourth proportional to 140,457.51, 193,783.88 and 79,985.28 is: 110,352.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,457.51 : 193,783.88 = 79,985.28 : x
  2. Step 2: Convert to fraction form
    140,457.51/193,783.88 = 79,985.28/x
  3. Step 3: Cross multiply
    140,457.51x = 193,783.88 × 79,985.28
  4. Step 4: Simplify right side
    140,457.51x = 15,499,856,932.37
  5. Step 5: Solve for x
    x = 15,499,856,932.37/140,457.51
  6. Step 6: Final answer
    x = 110,352.64

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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.