Home / 153,150.08-211,307.16-89,451.68

Finding the Fourth Proportional to 153,150.08, 211,307.16 and 89,451.68

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Solution

The fourth proportional to 153,150.08, 211,307.16 and 89,451.68 is: 123,419.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,150.08 : 211,307.16 = 89,451.68 : x
  2. Step 2: Convert to fraction form
    153,150.08/211,307.16 = 89,451.68/x
  3. Step 3: Cross multiply
    153,150.08x = 211,307.16 × 89,451.68
  4. Step 4: Simplify right side
    153,150.08x = 18,901,780,458.03
  5. Step 5: Solve for x
    x = 18,901,780,458.03/153,150.08
  6. Step 6: Final answer
    x = 123,419.98

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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.