Home / 158,860.08-219,301.64-91,779.12

Finding the Fourth Proportional to 158,860.08, 219,301.64 and 91,779.12

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Solution

The fourth proportional to 158,860.08, 219,301.64 and 91,779.12 is: 126,698.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,860.08 : 219,301.64 = 91,779.12 : x
  2. Step 2: Convert to fraction form
    158,860.08/219,301.64 = 91,779.12/x
  3. Step 3: Cross multiply
    158,860.08x = 219,301.64 × 91,779.12
  4. Step 4: Simplify right side
    158,860.08x = 20,127,311,533.76
  5. Step 5: Solve for x
    x = 20,127,311,533.76/158,860.08
  6. Step 6: Final answer
    x = 126,698.36

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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.