Home / 70,074.03-105,095.28-20,143.02

Finding the Fourth Proportional to 70,074.03, 105,095.28 and 20,143.02

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Solution

The fourth proportional to 70,074.03, 105,095.28 and 20,143.02 is: 30,210.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,074.03 : 105,095.28 = 20,143.02 : x
  2. Step 2: Convert to fraction form
    70,074.03/105,095.28 = 20,143.02/x
  3. Step 3: Cross multiply
    70,074.03x = 105,095.28 × 20,143.02
  4. Step 4: Simplify right side
    70,074.03x = 2,116,936,326.95
  5. Step 5: Solve for x
    x = 2,116,936,326.95/70,074.03
  6. Step 6: Final answer
    x = 30,210.00

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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.