Home / 382,095.90-572,779.35-142,145.55

Finding the Fourth Proportional to 382,095.90, 572,779.35 and 142,145.55

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Solution

The fourth proportional to 382,095.90, 572,779.35 and 142,145.55 is: 213,082.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,095.90 : 572,779.35 = 142,145.55 : x
  2. Step 2: Convert to fraction form
    382,095.90/572,779.35 = 142,145.55/x
  3. Step 3: Cross multiply
    382,095.90x = 572,779.35 × 142,145.55
  4. Step 4: Simplify right side
    382,095.90x = 81,418,035,734.39
  5. Step 5: Solve for x
    x = 81,418,035,734.39/382,095.90
  6. Step 6: Final answer
    x = 213,082.73

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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.