Home / 211,436.49-291,795.64-115,943.18

Finding the Fourth Proportional to 211,436.49, 291,795.64 and 115,943.18

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Solution

The fourth proportional to 211,436.49, 291,795.64 and 115,943.18 is: 160,008.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,436.49 : 291,795.64 = 115,943.18 : x
  2. Step 2: Convert to fraction form
    211,436.49/291,795.64 = 115,943.18/x
  3. Step 3: Cross multiply
    211,436.49x = 291,795.64 × 115,943.18
  4. Step 4: Simplify right side
    211,436.49x = 33,831,714,411.74
  5. Step 5: Solve for x
    x = 33,831,714,411.74/211,436.49
  6. Step 6: Final answer
    x = 160,008.87

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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.