Home / 105,211.26-145,193.40-64,382.22

Finding the Fourth Proportional to 105,211.26, 145,193.40 and 64,382.22

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Solution

The fourth proportional to 105,211.26, 145,193.40 and 64,382.22 is: 88,848.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,211.26 : 145,193.40 = 64,382.22 : x
  2. Step 2: Convert to fraction form
    105,211.26/145,193.40 = 64,382.22/x
  3. Step 3: Cross multiply
    105,211.26x = 145,193.40 × 64,382.22
  4. Step 4: Simplify right side
    105,211.26x = 9,347,873,421.35
  5. Step 5: Solve for x
    x = 9,347,873,421.35/105,211.26
  6. Step 6: Final answer
    x = 88,848.60

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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.