Home / 223,120.36-307,909.86-122,527.72

Finding the Fourth Proportional to 223,120.36, 307,909.86 and 122,527.72

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Solution

The fourth proportional to 223,120.36, 307,909.86 and 122,527.72 is: 169,090.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,120.36 : 307,909.86 = 122,527.72 : x
  2. Step 2: Convert to fraction form
    223,120.36/307,909.86 = 122,527.72/x
  3. Step 3: Cross multiply
    223,120.36x = 307,909.86 × 122,527.72
  4. Step 4: Simplify right side
    223,120.36x = 37,727,493,111.32
  5. Step 5: Solve for x
    x = 37,727,493,111.32/223,120.36
  6. Step 6: Final answer
    x = 169,090.32

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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.