Home / 149,037.67-205,673.47-81,056.19

Finding the Fourth Proportional to 149,037.67, 205,673.47 and 81,056.19

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Solution

The fourth proportional to 149,037.67, 205,673.47 and 81,056.19 is: 111,858.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,037.67 : 205,673.47 = 81,056.19 : x
  2. Step 2: Convert to fraction form
    149,037.67/205,673.47 = 81,056.19/x
  3. Step 3: Cross multiply
    149,037.67x = 205,673.47 × 81,056.19
  4. Step 4: Simplify right side
    149,037.67x = 16,671,107,659.64
  5. Step 5: Solve for x
    x = 16,671,107,659.64/149,037.67
  6. Step 6: Final answer
    x = 111,858.35

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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.