Home / 103,981.32-143,494.20-56,234.66

Finding the Fourth Proportional to 103,981.32, 143,494.20 and 56,234.66

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Solution

The fourth proportional to 103,981.32, 143,494.20 and 56,234.66 is: 77,603.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,981.32 : 143,494.20 = 56,234.66 : x
  2. Step 2: Convert to fraction form
    103,981.32/143,494.20 = 56,234.66/x
  3. Step 3: Cross multiply
    103,981.32x = 143,494.20 × 56,234.66
  4. Step 4: Simplify right side
    103,981.32x = 8,069,346,831.50
  5. Step 5: Solve for x
    x = 8,069,346,831.50/103,981.32
  6. Step 6: Final answer
    x = 77,603.81

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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.