Home / 210,485.03-315,507.02-98,072.55

Finding the Fourth Proportional to 210,485.03, 315,507.02 and 98,072.55

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Solution

The fourth proportional to 210,485.03, 315,507.02 and 98,072.55 is: 147,006.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,485.03 : 315,507.02 = 98,072.55 : x
  2. Step 2: Convert to fraction form
    210,485.03/315,507.02 = 98,072.55/x
  3. Step 3: Cross multiply
    210,485.03x = 315,507.02 × 98,072.55
  4. Step 4: Simplify right side
    210,485.03x = 30,942,577,503.94
  5. Step 5: Solve for x
    x = 30,942,577,503.94/210,485.03
  6. Step 6: Final answer
    x = 147,006.08

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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.