Home / 211,087.35-291,291.80-115,592.40

Finding the Fourth Proportional to 211,087.35, 291,291.80 and 115,592.40

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Solution

The fourth proportional to 211,087.35, 291,291.80 and 115,592.40 is: 159,512.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,087.35 : 291,291.80 = 115,592.40 : x
  2. Step 2: Convert to fraction form
    211,087.35/291,291.80 = 115,592.40/x
  3. Step 3: Cross multiply
    211,087.35x = 291,291.80 × 115,592.40
  4. Step 4: Simplify right side
    211,087.35x = 33,671,117,684.36
  5. Step 5: Solve for x
    x = 33,671,117,684.36/211,087.35
  6. Step 6: Final answer
    x = 159,512.72

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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.