Home / 109,208.40-163,812.60-30,323.40

Finding the Fourth Proportional to 109,208.40, 163,812.60 and 30,323.40

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Solution

The fourth proportional to 109,208.40, 163,812.60 and 30,323.40 is: 45,485.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,208.40 : 163,812.60 = 30,323.40 : x
  2. Step 2: Convert to fraction form
    109,208.40/163,812.60 = 30,323.40/x
  3. Step 3: Cross multiply
    109,208.40x = 163,812.60 × 30,323.40
  4. Step 4: Simplify right side
    109,208.40x = 4,967,354,994.84
  5. Step 5: Solve for x
    x = 4,967,354,994.84/109,208.40
  6. Step 6: Final answer
    x = 45,485.10

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1.5x scale

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.