Home / 112,708.96-155,538.12-64,961.98

Finding the Fourth Proportional to 112,708.96, 155,538.12 and 64,961.98

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Solution

The fourth proportional to 112,708.96, 155,538.12 and 64,961.98 is: 89,647.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,708.96 : 155,538.12 = 64,961.98 : x
  2. Step 2: Convert to fraction form
    112,708.96/155,538.12 = 64,961.98/x
  3. Step 3: Cross multiply
    112,708.96x = 155,538.12 × 64,961.98
  4. Step 4: Simplify right side
    112,708.96x = 10,104,064,240.68
  5. Step 5: Solve for x
    x = 10,104,064,240.68/112,708.96
  6. Step 6: Final answer
    x = 89,647.39

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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.