Home / 157,664.64-217,577.81-86,046.25

Finding the Fourth Proportional to 157,664.64, 217,577.81 and 86,046.25

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Solution

The fourth proportional to 157,664.64, 217,577.81 and 86,046.25 is: 118,744.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,664.64 : 217,577.81 = 86,046.25 : x
  2. Step 2: Convert to fraction form
    157,664.64/217,577.81 = 86,046.25/x
  3. Step 3: Cross multiply
    157,664.64x = 217,577.81 × 86,046.25
  4. Step 4: Simplify right side
    157,664.64x = 18,721,754,633.71
  5. Step 5: Solve for x
    x = 18,721,754,633.71/157,664.64
  6. Step 6: Final answer
    x = 118,744.16

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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.