Home / 145,431.23-200,627.74-85,004.42

Finding the Fourth Proportional to 145,431.23, 200,627.74 and 85,004.42

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Solution

The fourth proportional to 145,431.23, 200,627.74 and 85,004.42 is: 117,266.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,431.23 : 200,627.74 = 85,004.42 : x
  2. Step 2: Convert to fraction form
    145,431.23/200,627.74 = 85,004.42/x
  3. Step 3: Cross multiply
    145,431.23x = 200,627.74 × 85,004.42
  4. Step 4: Simplify right side
    145,431.23x = 17,054,244,674.61
  5. Step 5: Solve for x
    x = 17,054,244,674.61/145,431.23
  6. Step 6: Final answer
    x = 117,266.73

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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.