Home / 103,981.08-143,493.93-56,234.46

Finding the Fourth Proportional to 103,981.08, 143,493.93 and 56,234.46

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Solution

The fourth proportional to 103,981.08, 143,493.93 and 56,234.46 is: 77,603.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,981.08 : 143,493.93 = 56,234.46 : x
  2. Step 2: Convert to fraction form
    103,981.08/143,493.93 = 56,234.46/x
  3. Step 3: Cross multiply
    103,981.08x = 143,493.93 × 56,234.46
  4. Step 4: Simplify right side
    103,981.08x = 8,069,303,666.83
  5. Step 5: Solve for x
    x = 8,069,303,666.83/103,981.08
  6. Step 6: Final answer
    x = 77,603.58

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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.