Home / 161,783.96-223,262.04-90,162.36

Finding the Fourth Proportional to 161,783.96, 223,262.04 and 90,162.36

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Solution

The fourth proportional to 161,783.96, 223,262.04 and 90,162.36 is: 124,424.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,783.96 : 223,262.04 = 90,162.36 : x
  2. Step 2: Convert to fraction form
    161,783.96/223,262.04 = 90,162.36/x
  3. Step 3: Cross multiply
    161,783.96x = 223,262.04 × 90,162.36
  4. Step 4: Simplify right side
    161,783.96x = 20,129,832,424.81
  5. Step 5: Solve for x
    x = 20,129,832,424.81/161,783.96
  6. Step 6: Final answer
    x = 124,424.15

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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.