Home / 103,994.02-143,511.78-58,681.61

Finding the Fourth Proportional to 103,994.02, 143,511.78 and 58,681.61

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Solution

The fourth proportional to 103,994.02, 143,511.78 and 58,681.61 is: 80,980.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,994.02 : 143,511.78 = 58,681.61 : x
  2. Step 2: Convert to fraction form
    103,994.02/143,511.78 = 58,681.61/x
  3. Step 3: Cross multiply
    103,994.02x = 143,511.78 × 58,681.61
  4. Step 4: Simplify right side
    103,994.02x = 8,421,501,293.40
  5. Step 5: Solve for x
    x = 8,421,501,293.40/103,994.02
  6. Step 6: Final answer
    x = 80,980.63

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1.5x scale

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.