Home / 145,782.90-218,598.75-66,829.14

Finding the Fourth Proportional to 145,782.90, 218,598.75 and 66,829.14

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Solution

The fourth proportional to 145,782.90, 218,598.75 and 66,829.14 is: 100,209.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,782.90 : 218,598.75 = 66,829.14 : x
  2. Step 2: Convert to fraction form
    145,782.90/218,598.75 = 66,829.14/x
  3. Step 3: Cross multiply
    145,782.90x = 218,598.75 × 66,829.14
  4. Step 4: Simplify right side
    145,782.90x = 14,608,766,467.58
  5. Step 5: Solve for x
    x = 14,608,766,467.58/145,782.90
  6. Step 6: Final answer
    x = 100,209.05

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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.