Home / 140,457.86-193,784.37-79,985.63

Finding the Fourth Proportional to 140,457.86, 193,784.37 and 79,985.63

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Solution

The fourth proportional to 140,457.86, 193,784.37 and 79,985.63 is: 110,353.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,457.86 : 193,784.37 = 79,985.63 : x
  2. Step 2: Convert to fraction form
    140,457.86/193,784.37 = 79,985.63/x
  3. Step 3: Cross multiply
    140,457.86x = 193,784.37 × 79,985.63
  4. Step 4: Simplify right side
    140,457.86x = 15,499,964,918.60
  5. Step 5: Solve for x
    x = 15,499,964,918.60/140,457.86
  6. Step 6: Final answer
    x = 110,353.13

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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.