Home / 143,547.06-198,093.36-79,014.90

Finding the Fourth Proportional to 143,547.06, 198,093.36 and 79,014.90

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Solution

The fourth proportional to 143,547.06, 198,093.36 and 79,014.90 is: 109,039.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,547.06 : 198,093.36 = 79,014.90 : x
  2. Step 2: Convert to fraction form
    143,547.06/198,093.36 = 79,014.90/x
  3. Step 3: Cross multiply
    143,547.06x = 198,093.36 × 79,014.90
  4. Step 4: Simplify right side
    143,547.06x = 15,652,327,031.06
  5. Step 5: Solve for x
    x = 15,652,327,031.06/143,547.06
  6. Step 6: Final answer
    x = 109,039.69

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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.