Home / 124,811.80-186,828.90-72,064.60

Finding the Fourth Proportional to 124,811.80, 186,828.90 and 72,064.60

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Solution

The fourth proportional to 124,811.80, 186,828.90 and 72,064.60 is: 107,872.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,811.80 : 186,828.90 = 72,064.60 : x
  2. Step 2: Convert to fraction form
    124,811.80/186,828.90 = 72,064.60/x
  3. Step 3: Cross multiply
    124,811.80x = 186,828.90 × 72,064.60
  4. Step 4: Simplify right side
    124,811.80x = 13,463,749,946.94
  5. Step 5: Solve for x
    x = 13,463,749,946.94/124,811.80
  6. Step 6: Final answer
    x = 107,872.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.