Home / 161,787.96-223,267.56-90,166.36

Finding the Fourth Proportional to 161,787.96, 223,267.56 and 90,166.36

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Solution

The fourth proportional to 161,787.96, 223,267.56 and 90,166.36 is: 124,429.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,787.96 : 223,267.56 = 90,166.36 : x
  2. Step 2: Convert to fraction form
    161,787.96/223,267.56 = 90,166.36/x
  3. Step 3: Cross multiply
    161,787.96x = 223,267.56 × 90,166.36
  4. Step 4: Simplify right side
    161,787.96x = 20,131,223,191.28
  5. Step 5: Solve for x
    x = 20,131,223,191.28/161,787.96
  6. Step 6: Final answer
    x = 124,429.67

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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.