Home / 70,653.02-105,968.59-66,749.22

Finding the Fourth Proportional to 70,653.02, 105,968.59 and 66,749.22

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Solution

The fourth proportional to 70,653.02, 105,968.59 and 66,749.22 is: 100,113.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,653.02 : 105,968.59 = 66,749.22 : x
  2. Step 2: Convert to fraction form
    70,653.02/105,968.59 = 66,749.22/x
  3. Step 3: Cross multiply
    70,653.02x = 105,968.59 × 66,749.22
  4. Step 4: Simplify right side
    70,653.02x = 7,073,320,560.13
  5. Step 5: Solve for x
    x = 7,073,320,560.13/70,653.02
  6. Step 6: Final answer
    x = 100,113.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.