Home / 129,029.40-193,356.54-56,894.58

Finding the Fourth Proportional to 129,029.40, 193,356.54 and 56,894.58

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Solution

The fourth proportional to 129,029.40, 193,356.54 and 56,894.58 is: 85,259.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,029.40 : 193,356.54 = 56,894.58 : x
  2. Step 2: Convert to fraction form
    129,029.40/193,356.54 = 56,894.58/x
  3. Step 3: Cross multiply
    129,029.40x = 193,356.54 × 56,894.58
  4. Step 4: Simplify right side
    129,029.40x = 11,000,939,133.55
  5. Step 5: Solve for x
    x = 11,000,939,133.55/129,029.40
  6. Step 6: Final answer
    x = 85,259.17

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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.