Home / 142,027.81-195,971.07-85,442.83

Finding the Fourth Proportional to 142,027.81, 195,971.07 and 85,442.83

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Solution

The fourth proportional to 142,027.81, 195,971.07 and 85,442.83 is: 117,894.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,027.81 : 195,971.07 = 85,442.83 : x
  2. Step 2: Convert to fraction form
    142,027.81/195,971.07 = 85,442.83/x
  3. Step 3: Cross multiply
    142,027.81x = 195,971.07 × 85,442.83
  4. Step 4: Simplify right side
    142,027.81x = 16,744,322,818.93
  5. Step 5: Solve for x
    x = 16,744,322,818.93/142,027.81
  6. Step 6: Final answer
    x = 117,894.68

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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.