Home / 122,285.70-183,428.55-113,428.35

Finding the Fourth Proportional to 122,285.70, 183,428.55 and 113,428.35

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Solution

The fourth proportional to 122,285.70, 183,428.55 and 113,428.35 is: 170,142.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,285.70 : 183,428.55 = 113,428.35 : x
  2. Step 2: Convert to fraction form
    122,285.70/183,428.55 = 113,428.35/x
  3. Step 3: Cross multiply
    122,285.70x = 183,428.55 × 113,428.35
  4. Step 4: Simplify right side
    122,285.70x = 20,805,997,769.39
  5. Step 5: Solve for x
    x = 20,805,997,769.39/122,285.70
  6. Step 6: Final answer
    x = 170,142.53

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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.