Home / 102,968.58-142,108.62-62,705.94

Finding the Fourth Proportional to 102,968.58, 142,108.62 and 62,705.94

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Solution

The fourth proportional to 102,968.58, 142,108.62 and 62,705.94 is: 86,541.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,968.58 : 142,108.62 = 62,705.94 : x
  2. Step 2: Convert to fraction form
    102,968.58/142,108.62 = 62,705.94/x
  3. Step 3: Cross multiply
    102,968.58x = 142,108.62 × 62,705.94
  4. Step 4: Simplify right side
    102,968.58x = 8,911,054,599.20
  5. Step 5: Solve for x
    x = 8,911,054,599.20/102,968.58
  6. Step 6: Final answer
    x = 86,541.49

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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.