Home / 142,351.88-196,445.59-85,775.00

Finding the Fourth Proportional to 142,351.88, 196,445.59 and 85,775.00

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Solution

The fourth proportional to 142,351.88, 196,445.59 and 85,775.00 is: 118,369.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,351.88 : 196,445.59 = 85,775.00 : x
  2. Step 2: Convert to fraction form
    142,351.88/196,445.59 = 85,775.00/x
  3. Step 3: Cross multiply
    142,351.88x = 196,445.59 × 85,775.00
  4. Step 4: Simplify right side
    142,351.88x = 16,850,119,285.58
  5. Step 5: Solve for x
    x = 16,850,119,285.58/142,351.88
  6. Step 6: Final answer
    x = 118,369.49

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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.