Home / 142,313.34-196,386.93-81,903.39

Finding the Fourth Proportional to 142,313.34, 196,386.93 and 81,903.39

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Solution

The fourth proportional to 142,313.34, 196,386.93 and 81,903.39 is: 113,023.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,313.34 : 196,386.93 = 81,903.39 : x
  2. Step 2: Convert to fraction form
    142,313.34/196,386.93 = 81,903.39/x
  3. Step 3: Cross multiply
    142,313.34x = 196,386.93 × 81,903.39
  4. Step 4: Simplify right side
    142,313.34x = 16,084,755,318.69
  5. Step 5: Solve for x
    x = 16,084,755,318.69/142,313.34
  6. Step 6: Final answer
    x = 113,023.52

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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.