Home / 142,160.73-196,193.34-81,750.93

Finding the Fourth Proportional to 142,160.73, 196,193.34 and 81,750.93

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Solution

The fourth proportional to 142,160.73, 196,193.34 and 81,750.93 is: 112,822.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,160.73 : 196,193.34 = 81,750.93 : x
  2. Step 2: Convert to fraction form
    142,160.73/196,193.34 = 81,750.93/x
  3. Step 3: Cross multiply
    142,160.73x = 196,193.34 × 81,750.93
  4. Step 4: Simplify right side
    142,160.73x = 16,038,988,004.81
  5. Step 5: Solve for x
    x = 16,038,988,004.81/142,160.73
  6. Step 6: Final answer
    x = 112,822.92

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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.