Home / 153,454.14-211,767.35-89,779.64

Finding the Fourth Proportional to 153,454.14, 211,767.35 and 89,779.64

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Solution

The fourth proportional to 153,454.14, 211,767.35 and 89,779.64 is: 123,896.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,454.14 : 211,767.35 = 89,779.64 : x
  2. Step 2: Convert to fraction form
    153,454.14/211,767.35 = 89,779.64/x
  3. Step 3: Cross multiply
    153,454.14x = 211,767.35 × 89,779.64
  4. Step 4: Simplify right side
    153,454.14x = 19,012,394,939.02
  5. Step 5: Solve for x
    x = 19,012,394,939.02/153,454.14
  6. Step 6: Final answer
    x = 123,896.27

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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.