Home / 212,411.16-293,086.92-135,871.64

Finding the Fourth Proportional to 212,411.16, 293,086.92 and 135,871.64

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Solution

The fourth proportional to 212,411.16, 293,086.92 and 135,871.64 is: 187,476.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,411.16 : 293,086.92 = 135,871.64 : x
  2. Step 2: Convert to fraction form
    212,411.16/293,086.92 = 135,871.64/x
  3. Step 3: Cross multiply
    212,411.16x = 293,086.92 × 135,871.64
  4. Step 4: Simplify right side
    212,411.16x = 39,822,200,482.95
  5. Step 5: Solve for x
    x = 39,822,200,482.95/212,411.16
  6. Step 6: Final answer
    x = 187,476.97

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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.