Home / 107,016.06-147,683.70-61,693.20

Finding the Fourth Proportional to 107,016.06, 147,683.70 and 61,693.20

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Solution

The fourth proportional to 107,016.06, 147,683.70 and 61,693.20 is: 85,137.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,016.06 : 147,683.70 = 61,693.20 : x
  2. Step 2: Convert to fraction form
    107,016.06/147,683.70 = 61,693.20/x
  3. Step 3: Cross multiply
    107,016.06x = 147,683.70 × 61,693.20
  4. Step 4: Simplify right side
    107,016.06x = 9,111,080,040.84
  5. Step 5: Solve for x
    x = 9,111,080,040.84/107,016.06
  6. Step 6: Final answer
    x = 85,137.50

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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.