Home / 212,113.98-292,718.25-115,318.77

Finding the Fourth Proportional to 212,113.98, 292,718.25 and 115,318.77

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Solution

The fourth proportional to 212,113.98, 292,718.25 and 115,318.77 is: 159,140.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,113.98 : 292,718.25 = 115,318.77 : x
  2. Step 2: Convert to fraction form
    212,113.98/292,718.25 = 115,318.77/x
  3. Step 3: Cross multiply
    212,113.98x = 292,718.25 × 115,318.77
  4. Step 4: Simplify right side
    212,113.98x = 33,755,908,546.55
  5. Step 5: Solve for x
    x = 33,755,908,546.55/212,113.98
  6. Step 6: Final answer
    x = 159,140.42

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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.