Home / 145,722.44-201,091.56-81,190.16

Finding the Fourth Proportional to 145,722.44, 201,091.56 and 81,190.16

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Solution

The fourth proportional to 145,722.44, 201,091.56 and 81,190.16 is: 112,039.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,722.44 : 201,091.56 = 81,190.16 : x
  2. Step 2: Convert to fraction form
    145,722.44/201,091.56 = 81,190.16/x
  3. Step 3: Cross multiply
    145,722.44x = 201,091.56 × 81,190.16
  4. Step 4: Simplify right side
    145,722.44x = 16,326,655,931.05
  5. Step 5: Solve for x
    x = 16,326,655,931.05/145,722.44
  6. Step 6: Final answer
    x = 112,039.41

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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.