Home / 162,309.96-223,971.75-90,688.41

Finding the Fourth Proportional to 162,309.96, 223,971.75 and 90,688.41

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Solution

The fourth proportional to 162,309.96, 223,971.75 and 90,688.41 is: 125,141.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,309.96 : 223,971.75 = 90,688.41 : x
  2. Step 2: Convert to fraction form
    162,309.96/223,971.75 = 90,688.41/x
  3. Step 3: Cross multiply
    162,309.96x = 223,971.75 × 90,688.41
  4. Step 4: Simplify right side
    162,309.96x = 20,311,641,892.42
  5. Step 5: Solve for x
    x = 20,311,641,892.42/162,309.96
  6. Step 6: Final answer
    x = 125,141.07

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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.