Home / 157,904.76-217,905.96-86,283.25

Finding the Fourth Proportional to 157,904.76, 217,905.96 and 86,283.25

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Solution

The fourth proportional to 157,904.76, 217,905.96 and 86,283.25 is: 119,069.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,904.76 : 217,905.96 = 86,283.25 : x
  2. Step 2: Convert to fraction form
    157,904.76/217,905.96 = 86,283.25/x
  3. Step 3: Cross multiply
    157,904.76x = 217,905.96 × 86,283.25
  4. Step 4: Simplify right side
    157,904.76x = 18,801,634,423.17
  5. Step 5: Solve for x
    x = 18,801,634,423.17/157,904.76
  6. Step 6: Final answer
    x = 119,069.46

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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.