Home / 161,880.08-223,430.28-105,193.04

Finding the Fourth Proportional to 161,880.08, 223,430.28 and 105,193.04

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Solution

The fourth proportional to 161,880.08, 223,430.28 and 105,193.04 is: 145,189.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,880.08 : 223,430.28 = 105,193.04 : x
  2. Step 2: Convert to fraction form
    161,880.08/223,430.28 = 105,193.04/x
  3. Step 3: Cross multiply
    161,880.08x = 223,430.28 × 105,193.04
  4. Step 4: Simplify right side
    161,880.08x = 23,503,310,381.25
  5. Step 5: Solve for x
    x = 23,503,310,381.25/161,880.08
  6. Step 6: Final answer
    x = 145,189.64

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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.