Home / 105,222.78-157,817.16-38,646.45

Finding the Fourth Proportional to 105,222.78, 157,817.16 and 38,646.45

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Solution

The fourth proportional to 105,222.78, 157,817.16 and 38,646.45 is: 57,963.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,222.78 : 157,817.16 = 38,646.45 : x
  2. Step 2: Convert to fraction form
    105,222.78/157,817.16 = 38,646.45/x
  3. Step 3: Cross multiply
    105,222.78x = 157,817.16 × 38,646.45
  4. Step 4: Simplify right side
    105,222.78x = 6,099,072,983.08
  5. Step 5: Solve for x
    x = 6,099,072,983.08/105,222.78
  6. Step 6: Final answer
    x = 57,963.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.