Home / 103,971.32-143,480.75-56,225.00

Finding the Fourth Proportional to 103,971.32, 143,480.75 and 56,225.00

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Solution

The fourth proportional to 103,971.32, 143,480.75 and 56,225.00 is: 77,590.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,971.32 : 143,480.75 = 56,225.00 : x
  2. Step 2: Convert to fraction form
    103,971.32/143,480.75 = 56,225.00/x
  3. Step 3: Cross multiply
    103,971.32x = 143,480.75 × 56,225.00
  4. Step 4: Simplify right side
    103,971.32x = 8,067,204,170.22
  5. Step 5: Solve for x
    x = 8,067,204,170.22/103,971.32
  6. Step 6: Final answer
    x = 77,590.67

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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.