Home / 113,199.54-156,059.24-90,307.04

Finding the Fourth Proportional to 113,199.54, 156,059.24 and 90,307.04

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Solution

The fourth proportional to 113,199.54, 156,059.24 and 90,307.04 is: 124,499.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,199.54 : 156,059.24 = 90,307.04 : x
  2. Step 2: Convert to fraction form
    113,199.54/156,059.24 = 90,307.04/x
  3. Step 3: Cross multiply
    113,199.54x = 156,059.24 × 90,307.04
  4. Step 4: Simplify right side
    113,199.54x = 14,093,248,029.05
  5. Step 5: Solve for x
    x = 14,093,248,029.05/113,199.54
  6. Step 6: Final answer
    x = 124,499.16

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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.