Home / 112,671.09-155,486.22-61,684.17

Finding the Fourth Proportional to 112,671.09, 155,486.22 and 61,684.17

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Solution

The fourth proportional to 112,671.09, 155,486.22 and 61,684.17 is: 85,124.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,671.09 : 155,486.22 = 61,684.17 : x
  2. Step 2: Convert to fraction form
    112,671.09/155,486.22 = 61,684.17/x
  3. Step 3: Cross multiply
    112,671.09x = 155,486.22 × 61,684.17
  4. Step 4: Simplify right side
    112,671.09x = 9,591,038,427.14
  5. Step 5: Solve for x
    x = 9,591,038,427.14/112,671.09
  6. Step 6: Final answer
    x = 85,124.22

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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.