Home / 128,701.13-193,080.87-45,595.13

Finding the Fourth Proportional to 128,701.13, 193,080.87 and 45,595.13

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Solution

The fourth proportional to 128,701.13, 193,080.87 and 45,595.13 is: 68,403.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,701.13 : 193,080.87 = 45,595.13 : x
  2. Step 2: Convert to fraction form
    128,701.13/193,080.87 = 45,595.13/x
  3. Step 3: Cross multiply
    128,701.13x = 193,080.87 × 45,595.13
  4. Step 4: Simplify right side
    128,701.13x = 8,803,546,402.76
  5. Step 5: Solve for x
    x = 8,803,546,402.76/128,701.13
  6. Step 6: Final answer
    x = 68,403.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.