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Finding the Fourth Proportional to 157,360, 217,095.18 and 103,673.20

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Solution

The fourth proportional to 157,360, 217,095.18 and 103,673.20 is: 143,028.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,360 : 217,095.18 = 103,673.20 : x
  2. Step 2: Convert to fraction form
    157,360/217,095.18 = 103,673.20/x
  3. Step 3: Cross multiply
    157,360x = 217,095.18 × 103,673.20
  4. Step 4: Simplify right side
    157,360x = 22,506,952,015.18
  5. Step 5: Solve for x
    x = 22,506,952,015.18/157,360
  6. Step 6: Final answer
    x = 143,028.42

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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.