Home / 127,142.55-190,775.79-52,285.14

Finding the Fourth Proportional to 127,142.55, 190,775.79 and 52,285.14

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Solution

The fourth proportional to 127,142.55, 190,775.79 and 52,285.14 is: 78,453.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,142.55 : 190,775.79 = 52,285.14 : x
  2. Step 2: Convert to fraction form
    127,142.55/190,775.79 = 52,285.14/x
  3. Step 3: Cross multiply
    127,142.55x = 190,775.79 × 52,285.14
  4. Step 4: Simplify right side
    127,142.55x = 9,974,738,888.76
  5. Step 5: Solve for x
    x = 9,974,738,888.76/127,142.55
  6. Step 6: Final answer
    x = 78,453.19

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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.