Home / 205,014.16-307,543.12-86,697.46

Finding the Fourth Proportional to 205,014.16, 307,543.12 and 86,697.46

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Solution

The fourth proportional to 205,014.16, 307,543.12 and 86,697.46 is: 130,055.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,014.16 : 307,543.12 = 86,697.46 : x
  2. Step 2: Convert to fraction form
    205,014.16/307,543.12 = 86,697.46/x
  3. Step 3: Cross multiply
    205,014.16x = 307,543.12 × 86,697.46
  4. Step 4: Simplify right side
    205,014.16x = 26,663,207,512.16
  5. Step 5: Solve for x
    x = 26,663,207,512.16/205,014.16
  6. Step 6: Final answer
    x = 130,055.44

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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.