Home / 211,153.02-291,391.23-115,663.15

Finding the Fourth Proportional to 211,153.02, 291,391.23 and 115,663.15

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Solution

The fourth proportional to 211,153.02, 291,391.23 and 115,663.15 is: 159,615.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,153.02 : 291,391.23 = 115,663.15 : x
  2. Step 2: Convert to fraction form
    211,153.02/291,391.23 = 115,663.15/x
  3. Step 3: Cross multiply
    211,153.02x = 291,391.23 × 115,663.15
  4. Step 4: Simplify right side
    211,153.02x = 33,703,227,544.17
  5. Step 5: Solve for x
    x = 33,703,227,544.17/211,153.02
  6. Step 6: Final answer
    x = 159,615.18

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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.