Home / 102,939.68-142,059.40-60,500.48

Finding the Fourth Proportional to 102,939.68, 142,059.40 and 60,500.48

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Solution

The fourth proportional to 102,939.68, 142,059.40 and 60,500.48 is: 83,492.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,939.68 : 142,059.40 = 60,500.48 : x
  2. Step 2: Convert to fraction form
    102,939.68/142,059.40 = 60,500.48/x
  3. Step 3: Cross multiply
    102,939.68x = 142,059.40 × 60,500.48
  4. Step 4: Simplify right side
    102,939.68x = 8,594,661,888.51
  5. Step 5: Solve for x
    x = 8,594,661,888.51/102,939.68
  6. Step 6: Final answer
    x = 83,492.21

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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.