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Finding the Fourth Proportional to 157,086.99, 216,794.49 and 89,126.10

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Solution

The fourth proportional to 157,086.99, 216,794.49 and 89,126.10 is: 123,002.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,086.99 : 216,794.49 = 89,126.10 : x
  2. Step 2: Convert to fraction form
    157,086.99/216,794.49 = 89,126.10/x
  3. Step 3: Cross multiply
    157,086.99x = 216,794.49 × 89,126.10
  4. Step 4: Simplify right side
    157,086.99x = 19,322,047,395.19
  5. Step 5: Solve for x
    x = 19,322,047,395.19/157,086.99
  6. Step 6: Final answer
    x = 123,002.21

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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.