Home / 105,525.48-145,611.83-84,069.65

Finding the Fourth Proportional to 105,525.48, 145,611.83 and 84,069.65

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Solution

The fourth proportional to 105,525.48, 145,611.83 and 84,069.65 is: 116,005.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,525.48 : 145,611.83 = 84,069.65 : x
  2. Step 2: Convert to fraction form
    105,525.48/145,611.83 = 84,069.65/x
  3. Step 3: Cross multiply
    105,525.48x = 145,611.83 × 84,069.65
  4. Step 4: Simplify right side
    105,525.48x = 12,241,534,866.20
  5. Step 5: Solve for x
    x = 12,241,534,866.20/105,525.48
  6. Step 6: Final answer
    x = 116,005.48

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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.