Home / 109,323.12-163,984.80-30,437.52

Finding the Fourth Proportional to 109,323.12, 163,984.80 and 30,437.52

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Solution

The fourth proportional to 109,323.12, 163,984.80 and 30,437.52 is: 45,656.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,323.12 : 163,984.80 = 30,437.52 : x
  2. Step 2: Convert to fraction form
    109,323.12/163,984.80 = 30,437.52/x
  3. Step 3: Cross multiply
    109,323.12x = 163,984.80 × 30,437.52
  4. Step 4: Simplify right side
    109,323.12x = 4,991,290,629.70
  5. Step 5: Solve for x
    x = 4,991,290,629.70/109,323.12
  6. Step 6: Final answer
    x = 45,656.31

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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.