Home / 103,457.54-142,765.98-58,137.32

Finding the Fourth Proportional to 103,457.54, 142,765.98 and 58,137.32

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Solution

The fourth proportional to 103,457.54, 142,765.98 and 58,137.32 is: 80,226.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,457.54 : 142,765.98 = 58,137.32 : x
  2. Step 2: Convert to fraction form
    103,457.54/142,765.98 = 58,137.32/x
  3. Step 3: Cross multiply
    103,457.54x = 142,765.98 × 58,137.32
  4. Step 4: Simplify right side
    103,457.54x = 8,300,031,464.37
  5. Step 5: Solve for x
    x = 8,300,031,464.37/103,457.54
  6. Step 6: Final answer
    x = 80,226.45

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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.