Home / 124,484.90-186,504.60-75,709.40

Finding the Fourth Proportional to 124,484.90, 186,504.60 and 75,709.40

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Solution

The fourth proportional to 124,484.90, 186,504.60 and 75,709.40 is: 113,428.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,484.90 : 186,504.60 = 75,709.40 : x
  2. Step 2: Convert to fraction form
    124,484.90/186,504.60 = 75,709.40/x
  3. Step 3: Cross multiply
    124,484.90x = 186,504.60 × 75,709.40
  4. Step 4: Simplify right side
    124,484.90x = 14,120,151,363.24
  5. Step 5: Solve for x
    x = 14,120,151,363.24/124,484.90
  6. Step 6: Final answer
    x = 113,428.63

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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.