Home / 212,415.11-293,098.55-121,754.39

Finding the Fourth Proportional to 212,415.11, 293,098.55 and 121,754.39

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Solution

The fourth proportional to 212,415.11, 293,098.55 and 121,754.39 is: 168,001.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,415.11 : 293,098.55 = 121,754.39 : x
  2. Step 2: Convert to fraction form
    212,415.11/293,098.55 = 121,754.39/x
  3. Step 3: Cross multiply
    212,415.11x = 293,098.55 × 121,754.39
  4. Step 4: Simplify right side
    212,415.11x = 35,686,035,424.42
  5. Step 5: Solve for x
    x = 35,686,035,424.42/212,415.11
  6. Step 6: Final answer
    x = 168,001.40

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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.