Home / 382,030.45-572,689.39-129,134.98

Finding the Fourth Proportional to 382,030.45, 572,689.39 and 129,134.98

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Solution

The fourth proportional to 382,030.45, 572,689.39 and 129,134.98 is: 193,582.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,030.45 : 572,689.39 = 129,134.98 : x
  2. Step 2: Convert to fraction form
    382,030.45/572,689.39 = 129,134.98/x
  3. Step 3: Cross multiply
    382,030.45x = 572,689.39 × 129,134.98
  4. Step 4: Simplify right side
    382,030.45x = 73,954,232,923.86
  5. Step 5: Solve for x
    x = 73,954,232,923.86/382,030.45
  6. Step 6: Final answer
    x = 193,582.04

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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.