Home / 157,848.36-217,845.75-86,239.14

Finding the Fourth Proportional to 157,848.36, 217,845.75 and 86,239.14

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Solution

The fourth proportional to 157,848.36, 217,845.75 and 86,239.14 is: 119,018.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,848.36 : 217,845.75 = 86,239.14 : x
  2. Step 2: Convert to fraction form
    157,848.36/217,845.75 = 86,239.14/x
  3. Step 3: Cross multiply
    157,848.36x = 217,845.75 × 86,239.14
  4. Step 4: Simplify right side
    157,848.36x = 18,786,830,132.66
  5. Step 5: Solve for x
    x = 18,786,830,132.66/157,848.36
  6. Step 6: Final answer
    x = 119,018.22

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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.