Home / 216,708.20-299,041.08-121,196.44

Finding the Fourth Proportional to 216,708.20, 299,041.08 and 121,196.44

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Solution

The fourth proportional to 216,708.20, 299,041.08 and 121,196.44 is: 167,242.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,708.20 : 299,041.08 = 121,196.44 : x
  2. Step 2: Convert to fraction form
    216,708.20/299,041.08 = 121,196.44/x
  3. Step 3: Cross multiply
    216,708.20x = 299,041.08 × 121,196.44
  4. Step 4: Simplify right side
    216,708.20x = 36,242,714,309.76
  5. Step 5: Solve for x
    x = 36,242,714,309.76/216,708.20
  6. Step 6: Final answer
    x = 167,242.01

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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.