Home / 212,340.41-293,041.86-121,711.45

Finding the Fourth Proportional to 212,340.41, 293,041.86 and 121,711.45

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Solution

The fourth proportional to 212,340.41, 293,041.86 and 121,711.45 is: 167,968.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,340.41 : 293,041.86 = 121,711.45 : x
  2. Step 2: Convert to fraction form
    212,340.41/293,041.86 = 121,711.45/x
  3. Step 3: Cross multiply
    212,340.41x = 293,041.86 × 121,711.45
  4. Step 4: Simplify right side
    212,340.41x = 35,666,548,226.09
  5. Step 5: Solve for x
    x = 35,666,548,226.09/212,340.41
  6. Step 6: Final answer
    x = 167,968.73

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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.