Home / 100,065.30-138,089.94-59,802.64

Finding the Fourth Proportional to 100,065.30, 138,089.94 and 59,802.64

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Solution

The fourth proportional to 100,065.30, 138,089.94 and 59,802.64 is: 82,527.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,065.30 : 138,089.94 = 59,802.64 : x
  2. Step 2: Convert to fraction form
    100,065.30/138,089.94 = 59,802.64/x
  3. Step 3: Cross multiply
    100,065.30x = 138,089.94 × 59,802.64
  4. Step 4: Simplify right side
    100,065.30x = 8,258,142,969.44
  5. Step 5: Solve for x
    x = 8,258,142,969.44/100,065.30
  6. Step 6: Final answer
    x = 82,527.54

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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.