Home / 119,866.96-178,889-106,581.28

Finding the Fourth Proportional to 119,866.96, 178,889 and 106,581.28

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Solution

The fourth proportional to 119,866.96, 178,889 and 106,581.28 is: 159,061.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,866.96 : 178,889 = 106,581.28 : x
  2. Step 2: Convert to fraction form
    119,866.96/178,889 = 106,581.28/x
  3. Step 3: Cross multiply
    119,866.96x = 178,889 × 106,581.28
  4. Step 4: Simplify right side
    119,866.96x = 19,066,218,597.92
  5. Step 5: Solve for x
    x = 19,066,218,597.92/119,866.96
  6. Step 6: Final answer
    x = 159,061.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.