Home / 103,271.05-142,512.72-57,949.93

Finding the Fourth Proportional to 103,271.05, 142,512.72 and 57,949.93

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Solution

The fourth proportional to 103,271.05, 142,512.72 and 57,949.93 is: 79,970.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,271.05 : 142,512.72 = 57,949.93 : x
  2. Step 2: Convert to fraction form
    103,271.05/142,512.72 = 57,949.93/x
  3. Step 3: Cross multiply
    103,271.05x = 142,512.72 × 57,949.93
  4. Step 4: Simplify right side
    103,271.05x = 8,258,602,108.94
  5. Step 5: Solve for x
    x = 8,258,602,108.94/103,271.05
  6. Step 6: Final answer
    x = 79,970.16

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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.