Home / 149,038.00-205,673.78-81,055.60

Finding the Fourth Proportional to 149,038.00, 205,673.78 and 81,055.60

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Solution

The fourth proportional to 149,038.00, 205,673.78 and 81,055.60 is: 111,857.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,038.00 : 205,673.78 = 81,055.60 : x
  2. Step 2: Convert to fraction form
    149,038.00/205,673.78 = 81,055.60/x
  3. Step 3: Cross multiply
    149,038.00x = 205,673.78 × 81,055.60
  4. Step 4: Simplify right side
    149,038.00x = 16,671,010,208.52
  5. Step 5: Solve for x
    x = 16,671,010,208.52/149,038.00
  6. Step 6: Final answer
    x = 111,857.45

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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.