Home / 157,448.58-217,277.64-85,828.56

Finding the Fourth Proportional to 157,448.58, 217,277.64 and 85,828.56

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Solution

The fourth proportional to 157,448.58, 217,277.64 and 85,828.56 is: 118,442.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,448.58 : 217,277.64 = 85,828.56 : x
  2. Step 2: Convert to fraction form
    157,448.58/217,277.64 = 85,828.56/x
  3. Step 3: Cross multiply
    157,448.58x = 217,277.64 × 85,828.56
  4. Step 4: Simplify right side
    157,448.58x = 18,648,626,961.40
  5. Step 5: Solve for x
    x = 18,648,626,961.40/157,448.58
  6. Step 6: Final answer
    x = 118,442.65

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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.