Home / 157,530.16-217,268.75-100,946.80

Finding the Fourth Proportional to 157,530.16, 217,268.75 and 100,946.80

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Solution

The fourth proportional to 157,530.16, 217,268.75 and 100,946.80 is: 139,227.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,530.16 : 217,268.75 = 100,946.80 : x
  2. Step 2: Convert to fraction form
    157,530.16/217,268.75 = 100,946.80/x
  3. Step 3: Cross multiply
    157,530.16x = 217,268.75 × 100,946.80
  4. Step 4: Simplify right side
    157,530.16x = 21,932,585,052.50
  5. Step 5: Solve for x
    x = 21,932,585,052.50/157,530.16
  6. Step 6: Final answer
    x = 139,227.85

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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.