Home / 134,840.50-186,147.21-83,869.68

Finding the Fourth Proportional to 134,840.50, 186,147.21 and 83,869.68

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Solution

The fourth proportional to 134,840.50, 186,147.21 and 83,869.68 is: 115,782.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,840.50 : 186,147.21 = 83,869.68 : x
  2. Step 2: Convert to fraction form
    134,840.50/186,147.21 = 83,869.68/x
  3. Step 3: Cross multiply
    134,840.50x = 186,147.21 × 83,869.68
  4. Step 4: Simplify right side
    134,840.50x = 15,612,106,901.08
  5. Step 5: Solve for x
    x = 15,612,106,901.08/134,840.50
  6. Step 6: Final answer
    x = 115,782.03

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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.