Home / 145,782.84-218,805.48-75,711.36

Finding the Fourth Proportional to 145,782.84, 218,805.48 and 75,711.36

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Solution

The fourth proportional to 145,782.84, 218,805.48 and 75,711.36 is: 113,635.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,782.84 : 218,805.48 = 75,711.36 : x
  2. Step 2: Convert to fraction form
    145,782.84/218,805.48 = 75,711.36/x
  3. Step 3: Cross multiply
    145,782.84x = 218,805.48 × 75,711.36
  4. Step 4: Simplify right side
    145,782.84x = 16,566,060,466.25
  5. Step 5: Solve for x
    x = 16,566,060,466.25/145,782.84
  6. Step 6: Final answer
    x = 113,635.19

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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.