Home / 157,884.32-217,880.08-90,828.96

Finding the Fourth Proportional to 157,884.32, 217,880.08 and 90,828.96

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Solution

The fourth proportional to 157,884.32, 217,880.08 and 90,828.96 is: 125,343.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,884.32 : 217,880.08 = 90,828.96 : x
  2. Step 2: Convert to fraction form
    157,884.32/217,880.08 = 90,828.96/x
  3. Step 3: Cross multiply
    157,884.32x = 217,880.08 × 90,828.96
  4. Step 4: Simplify right side
    157,884.32x = 19,789,821,071.12
  5. Step 5: Solve for x
    x = 19,789,821,071.12/157,884.32
  6. Step 6: Final answer
    x = 125,343.80

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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.