Home / 212,520.06-293,277.20-115,722.40

Finding the Fourth Proportional to 212,520.06, 293,277.20 and 115,722.40

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Solution

The fourth proportional to 212,520.06, 293,277.20 and 115,722.40 is: 159,696.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,520.06 : 293,277.20 = 115,722.40 : x
  2. Step 2: Convert to fraction form
    212,520.06/293,277.20 = 115,722.40/x
  3. Step 3: Cross multiply
    212,520.06x = 293,277.20 × 115,722.40
  4. Step 4: Simplify right side
    212,520.06x = 33,938,740,870.67
  5. Step 5: Solve for x
    x = 33,938,740,870.67/212,520.06
  6. Step 6: Final answer
    x = 159,696.65

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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.