Home / 112,961.63-155,887.13-62,660.63

Finding the Fourth Proportional to 112,961.63, 155,887.13 and 62,660.63

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Solution

The fourth proportional to 112,961.63, 155,887.13 and 62,660.63 is: 86,471.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,961.63 : 155,887.13 = 62,660.63 : x
  2. Step 2: Convert to fraction form
    112,961.63/155,887.13 = 62,660.63/x
  3. Step 3: Cross multiply
    112,961.63x = 155,887.13 × 62,660.63
  4. Step 4: Simplify right side
    112,961.63x = 9,767,985,774.69
  5. Step 5: Solve for x
    x = 9,767,985,774.69/112,961.63
  6. Step 6: Final answer
    x = 86,471.71

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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.