Home / 104,072.42-155,959.18-51,420.40

Finding the Fourth Proportional to 104,072.42, 155,959.18 and 51,420.40

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Solution

The fourth proportional to 104,072.42, 155,959.18 and 51,420.40 is: 77,056.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,072.42 : 155,959.18 = 51,420.40 : x
  2. Step 2: Convert to fraction form
    104,072.42/155,959.18 = 51,420.40/x
  3. Step 3: Cross multiply
    104,072.42x = 155,959.18 × 51,420.40
  4. Step 4: Simplify right side
    104,072.42x = 8,019,483,419.27
  5. Step 5: Solve for x
    x = 8,019,483,419.27/104,072.42
  6. Step 6: Final answer
    x = 77,056.76

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1.5x scale

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.