Home / 109,099.51-150,559.38-63,781.36

Finding the Fourth Proportional to 109,099.51, 150,559.38 and 63,781.36

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Solution

The fourth proportional to 109,099.51, 150,559.38 and 63,781.36 is: 88,019.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,099.51 : 150,559.38 = 63,781.36 : x
  2. Step 2: Convert to fraction form
    109,099.51/150,559.38 = 63,781.36/x
  3. Step 3: Cross multiply
    109,099.51x = 150,559.38 × 63,781.36
  4. Step 4: Simplify right side
    109,099.51x = 9,602,882,017.16
  5. Step 5: Solve for x
    x = 9,602,882,017.16/109,099.51
  6. Step 6: Final answer
    x = 88,019.48

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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.