Home / 105,236.16-145,199.88-67,561.44

Finding the Fourth Proportional to 105,236.16, 145,199.88 and 67,561.44

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Solution

The fourth proportional to 105,236.16, 145,199.88 and 67,561.44 is: 93,218.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,236.16 : 145,199.88 = 67,561.44 : x
  2. Step 2: Convert to fraction form
    105,236.16/145,199.88 = 67,561.44/x
  3. Step 3: Cross multiply
    105,236.16x = 145,199.88 × 67,561.44
  4. Step 4: Simplify right side
    105,236.16x = 9,809,912,980.63
  5. Step 5: Solve for x
    x = 9,809,912,980.63/105,236.16
  6. Step 6: Final answer
    x = 93,218.08

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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.