Home / 212,870.40-293,759.36-117,381.12

Finding the Fourth Proportional to 212,870.40, 293,759.36 and 117,381.12

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Solution

The fourth proportional to 212,870.40, 293,759.36 and 117,381.12 is: 161,984.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,870.40 : 293,759.36 = 117,381.12 : x
  2. Step 2: Convert to fraction form
    212,870.40/293,759.36 = 117,381.12/x
  3. Step 3: Cross multiply
    212,870.40x = 293,759.36 × 117,381.12
  4. Step 4: Simplify right side
    212,870.40x = 34,481,802,687.28
  5. Step 5: Solve for x
    x = 34,481,802,687.28/212,870.40
  6. Step 6: Final answer
    x = 161,984.96

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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.