Home / 211,875.88-292,316.29-121,198.81

Finding the Fourth Proportional to 211,875.88, 292,316.29 and 121,198.81

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Solution

The fourth proportional to 211,875.88, 292,316.29 and 121,198.81 is: 167,212.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,875.88 : 292,316.29 = 121,198.81 : x
  2. Step 2: Convert to fraction form
    211,875.88/292,316.29 = 121,198.81/x
  3. Step 3: Cross multiply
    211,875.88x = 292,316.29 × 121,198.81
  4. Step 4: Simplify right side
    211,875.88x = 35,428,386,491.61
  5. Step 5: Solve for x
    x = 35,428,386,491.61/211,875.88
  6. Step 6: Final answer
    x = 167,212.93

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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.