Home / 157,848.48-217,822.78-86,214.66

Finding the Fourth Proportional to 157,848.48, 217,822.78 and 86,214.66

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Solution

The fourth proportional to 157,848.48, 217,822.78 and 86,214.66 is: 118,971.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,848.48 : 217,822.78 = 86,214.66 : x
  2. Step 2: Convert to fraction form
    157,848.48/217,822.78 = 86,214.66/x
  3. Step 3: Cross multiply
    157,848.48x = 217,822.78 × 86,214.66
  4. Step 4: Simplify right side
    157,848.48x = 18,779,516,917.95
  5. Step 5: Solve for x
    x = 18,779,516,917.95/157,848.48
  6. Step 6: Final answer
    x = 118,971.79

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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.