Home / 102,055.42-140,944.08-90,923.62

Finding the Fourth Proportional to 102,055.42, 140,944.08 and 90,923.62

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Solution

The fourth proportional to 102,055.42, 140,944.08 and 90,923.62 is: 125,570.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,055.42 : 140,944.08 = 90,923.62 : x
  2. Step 2: Convert to fraction form
    102,055.42/140,944.08 = 90,923.62/x
  3. Step 3: Cross multiply
    102,055.42x = 140,944.08 × 90,923.62
  4. Step 4: Simplify right side
    102,055.42x = 12,815,145,971.17
  5. Step 5: Solve for x
    x = 12,815,145,971.17/102,055.42
  6. Step 6: Final answer
    x = 125,570.46

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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.