Home / 143,705.10-198,303.47-83,264.98

Finding the Fourth Proportional to 143,705.10, 198,303.47 and 83,264.98

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Solution

The fourth proportional to 143,705.10, 198,303.47 and 83,264.98 is: 114,900.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,705.10 : 198,303.47 = 83,264.98 : x
  2. Step 2: Convert to fraction form
    143,705.10/198,303.47 = 83,264.98/x
  3. Step 3: Cross multiply
    143,705.10x = 198,303.47 × 83,264.98
  4. Step 4: Simplify right side
    143,705.10x = 16,511,734,703.83
  5. Step 5: Solve for x
    x = 16,511,734,703.83/143,705.10
  6. Step 6: Final answer
    x = 114,900.13

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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.