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Finding the Fourth Proportional to 157,029.63, 216,629.41 and 93,331.23

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Solution

The fourth proportional to 157,029.63, 216,629.41 and 93,331.23 is: 128,754.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,029.63 : 216,629.41 = 93,331.23 : x
  2. Step 2: Convert to fraction form
    157,029.63/216,629.41 = 93,331.23/x
  3. Step 3: Cross multiply
    157,029.63x = 216,629.41 × 93,331.23
  4. Step 4: Simplify right side
    157,029.63x = 20,218,289,289.47
  5. Step 5: Solve for x
    x = 20,218,289,289.47/157,029.63
  6. Step 6: Final answer
    x = 128,754.61

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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.