Home / 161,749.14-223,210.78-90,127.62

Finding the Fourth Proportional to 161,749.14, 223,210.78 and 90,127.62

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Solution

The fourth proportional to 161,749.14, 223,210.78 and 90,127.62 is: 124,374.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,749.14 : 223,210.78 = 90,127.62 : x
  2. Step 2: Convert to fraction form
    161,749.14/223,210.78 = 90,127.62/x
  3. Step 3: Cross multiply
    161,749.14x = 223,210.78 × 90,127.62
  4. Step 4: Simplify right side
    161,749.14x = 20,117,456,359.74
  5. Step 5: Solve for x
    x = 20,117,456,359.74/161,749.14
  6. Step 6: Final answer
    x = 124,374.43

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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.