Home / 157,828.50-217,802.04-86,208.54

Finding the Fourth Proportional to 157,828.50, 217,802.04 and 86,208.54

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Solution

The fourth proportional to 157,828.50, 217,802.04 and 86,208.54 is: 118,967.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,828.50 : 217,802.04 = 86,208.54 : x
  2. Step 2: Convert to fraction form
    157,828.50/217,802.04 = 86,208.54/x
  3. Step 3: Cross multiply
    157,828.50x = 217,802.04 × 86,208.54
  4. Step 4: Simplify right side
    157,828.50x = 18,776,395,877.42
  5. Step 5: Solve for x
    x = 18,776,395,877.42/157,828.50
  6. Step 6: Final answer
    x = 118,967.08

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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.