Home / 142,627.37-196,812.14-85,255.30

Finding the Fourth Proportional to 142,627.37, 196,812.14 and 85,255.30

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Solution

The fourth proportional to 142,627.37, 196,812.14 and 85,255.30 is: 117,644.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,627.37 : 196,812.14 = 85,255.30 : x
  2. Step 2: Convert to fraction form
    142,627.37/196,812.14 = 85,255.30/x
  3. Step 3: Cross multiply
    142,627.37x = 196,812.14 × 85,255.30
  4. Step 4: Simplify right side
    142,627.37x = 16,779,276,629.00
  5. Step 5: Solve for x
    x = 16,779,276,629.00/142,627.37
  6. Step 6: Final answer
    x = 117,644.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.