Home / 211,152.02-291,389.85-115,662.15

Finding the Fourth Proportional to 211,152.02, 291,389.85 and 115,662.15

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Solution

The fourth proportional to 211,152.02, 291,389.85 and 115,662.15 is: 159,613.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,152.02 : 291,389.85 = 115,662.15 : x
  2. Step 2: Convert to fraction form
    211,152.02/291,389.85 = 115,662.15/x
  3. Step 3: Cross multiply
    211,152.02x = 291,389.85 × 115,662.15
  4. Step 4: Simplify right side
    211,152.02x = 33,702,776,539.18
  5. Step 5: Solve for x
    x = 33,702,776,539.18/211,152.02
  6. Step 6: Final answer
    x = 159,613.80

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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.