Home / 103,940.14-143,437.40-56,193.47

Finding the Fourth Proportional to 103,940.14, 143,437.40 and 56,193.47

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Solution

The fourth proportional to 103,940.14, 143,437.40 and 56,193.47 is: 77,547.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,940.14 : 143,437.40 = 56,193.47 : x
  2. Step 2: Convert to fraction form
    103,940.14/143,437.40 = 56,193.47/x
  3. Step 3: Cross multiply
    103,940.14x = 143,437.40 × 56,193.47
  4. Step 4: Simplify right side
    103,940.14x = 8,060,245,233.78
  5. Step 5: Solve for x
    x = 8,060,245,233.78/103,940.14
  6. Step 6: Final answer
    x = 77,547.00

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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.