Home / 145,541.44-200,816.84-85,100.32

Finding the Fourth Proportional to 145,541.44, 200,816.84 and 85,100.32

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Solution

The fourth proportional to 145,541.44, 200,816.84 and 85,100.32 is: 117,420.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,541.44 : 200,816.84 = 85,100.32 : x
  2. Step 2: Convert to fraction form
    145,541.44/200,816.84 = 85,100.32/x
  3. Step 3: Cross multiply
    145,541.44x = 200,816.84 × 85,100.32
  4. Step 4: Simplify right side
    145,541.44x = 17,089,577,345.39
  5. Step 5: Solve for x
    x = 17,089,577,345.39/145,541.44
  6. Step 6: Final answer
    x = 117,420.70

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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.