Home / 112,272.17-154,961.60-74,038.59

Finding the Fourth Proportional to 112,272.17, 154,961.60 and 74,038.59

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Solution

The fourth proportional to 112,272.17, 154,961.60 and 74,038.59 is: 102,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,272.17 : 154,961.60 = 74,038.59 : x
  2. Step 2: Convert to fraction form
    112,272.17/154,961.60 = 74,038.59/x
  3. Step 3: Cross multiply
    112,272.17x = 154,961.60 × 74,038.59
  4. Step 4: Simplify right side
    112,272.17x = 11,473,137,997.95
  5. Step 5: Solve for x
    x = 11,473,137,997.95/112,272.17
  6. Step 6: Final answer
    x = 102,190.40

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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.