Home / 109,403.55-163,777.28-65,007.45

Finding the Fourth Proportional to 109,403.55, 163,777.28 and 65,007.45

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Solution

The fourth proportional to 109,403.55, 163,777.28 and 65,007.45 is: 97,316.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,403.55 : 163,777.28 = 65,007.45 : x
  2. Step 2: Convert to fraction form
    109,403.55/163,777.28 = 65,007.45/x
  3. Step 3: Cross multiply
    109,403.55x = 163,777.28 × 65,007.45
  4. Step 4: Simplify right side
    109,403.55x = 10,646,743,015.70
  5. Step 5: Solve for x
    x = 10,646,743,015.70/109,403.55
  6. Step 6: Final answer
    x = 97,316.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.