Home / 189,779.32-261,914.56-109,210.24

Finding the Fourth Proportional to 189,779.32, 261,914.56 and 109,210.24

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Solution

The fourth proportional to 189,779.32, 261,914.56 and 109,210.24 is: 150,721.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,779.32 : 261,914.56 = 109,210.24 : x
  2. Step 2: Convert to fraction form
    189,779.32/261,914.56 = 109,210.24/x
  3. Step 3: Cross multiply
    189,779.32x = 261,914.56 × 109,210.24
  4. Step 4: Simplify right side
    189,779.32x = 28,603,751,957.09
  5. Step 5: Solve for x
    x = 28,603,751,957.09/189,779.32
  6. Step 6: Final answer
    x = 150,721.12

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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.