Home / 142,242.48-196,300.26-81,813.05

Finding the Fourth Proportional to 142,242.48, 196,300.26 and 81,813.05

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Solution

The fourth proportional to 142,242.48, 196,300.26 and 81,813.05 is: 112,905.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,242.48 : 196,300.26 = 81,813.05 : x
  2. Step 2: Convert to fraction form
    142,242.48/196,300.26 = 81,813.05/x
  3. Step 3: Cross multiply
    142,242.48x = 196,300.26 × 81,813.05
  4. Step 4: Simplify right side
    142,242.48x = 16,059,922,986.39
  5. Step 5: Solve for x
    x = 16,059,922,986.39/142,242.48
  6. Step 6: Final answer
    x = 112,905.25

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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.