Home / 149,133.90-205,808.31-84,607.50

Finding the Fourth Proportional to 149,133.90, 205,808.31 and 84,607.50

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Solution

The fourth proportional to 149,133.90, 205,808.31 and 84,607.50 is: 116,760.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,133.90 : 205,808.31 = 84,607.50 : x
  2. Step 2: Convert to fraction form
    149,133.90/205,808.31 = 84,607.50/x
  3. Step 3: Cross multiply
    149,133.90x = 205,808.31 × 84,607.50
  4. Step 4: Simplify right side
    149,133.90x = 17,412,926,588.33
  5. Step 5: Solve for x
    x = 17,412,926,588.33/149,133.90
  6. Step 6: Final answer
    x = 116,760.35

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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.