Home / 210,382.85-315,577.07-70,141.52

Finding the Fourth Proportional to 210,382.85, 315,577.07 and 70,141.52

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Solution

The fourth proportional to 210,382.85, 315,577.07 and 70,141.52 is: 105,213.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,382.85 : 315,577.07 = 70,141.52 : x
  2. Step 2: Convert to fraction form
    210,382.85/315,577.07 = 70,141.52/x
  3. Step 3: Cross multiply
    210,382.85x = 315,577.07 × 70,141.52
  4. Step 4: Simplify right side
    210,382.85x = 22,135,056,068.21
  5. Step 5: Solve for x
    x = 22,135,056,068.21/210,382.85
  6. Step 6: Final answer
    x = 105,213.21

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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.