Home / 142,882.10-197,088.15-91,961.45

Finding the Fourth Proportional to 142,882.10, 197,088.15 and 91,961.45

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Solution

The fourth proportional to 142,882.10, 197,088.15 and 91,961.45 is: 126,849.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,882.10 : 197,088.15 = 91,961.45 : x
  2. Step 2: Convert to fraction form
    142,882.10/197,088.15 = 91,961.45/x
  3. Step 3: Cross multiply
    142,882.10x = 197,088.15 × 91,961.45
  4. Step 4: Simplify right side
    142,882.10x = 18,124,512,051.82
  5. Step 5: Solve for x
    x = 18,124,512,051.82/142,882.10
  6. Step 6: Final answer
    x = 126,849.42

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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.