Home / 103,518.86-142,852.70-58,198.75

Finding the Fourth Proportional to 103,518.86, 142,852.70 and 58,198.75

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Solution

The fourth proportional to 103,518.86, 142,852.70 and 58,198.75 is: 80,312.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,518.86 : 142,852.70 = 58,198.75 : x
  2. Step 2: Convert to fraction form
    103,518.86/142,852.70 = 58,198.75/x
  3. Step 3: Cross multiply
    103,518.86x = 142,852.70 × 58,198.75
  4. Step 4: Simplify right side
    103,518.86x = 8,313,848,362.49
  5. Step 5: Solve for x
    x = 8,313,848,362.49/103,518.86
  6. Step 6: Final answer
    x = 80,312.40

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1.5x scale

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.