Home / 211,501.50-291,897.99-122,077.50

Finding the Fourth Proportional to 211,501.50, 291,897.99 and 122,077.50

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Solution

The fourth proportional to 211,501.50, 291,897.99 and 122,077.50 is: 168,481.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,501.50 : 291,897.99 = 122,077.50 : x
  2. Step 2: Convert to fraction form
    211,501.50/291,897.99 = 122,077.50/x
  3. Step 3: Cross multiply
    211,501.50x = 291,897.99 × 122,077.50
  4. Step 4: Simplify right side
    211,501.50x = 35,634,176,874.23
  5. Step 5: Solve for x
    x = 35,634,176,874.23/211,501.50
  6. Step 6: Final answer
    x = 168,481.91

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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.