Home / 142,298.10-196,382.54-81,046.89

Finding the Fourth Proportional to 142,298.10, 196,382.54 and 81,046.89

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Solution

The fourth proportional to 142,298.10, 196,382.54 and 81,046.89 is: 111,851.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,298.10 : 196,382.54 = 81,046.89 : x
  2. Step 2: Convert to fraction form
    142,298.10/196,382.54 = 81,046.89/x
  3. Step 3: Cross multiply
    142,298.10x = 196,382.54 × 81,046.89
  4. Step 4: Simplify right side
    142,298.10x = 15,916,194,319.92
  5. Step 5: Solve for x
    x = 15,916,194,319.92/142,298.10
  6. Step 6: Final answer
    x = 111,851.07

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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.