Home / 103,857.66-143,323.58-56,111.01

Finding the Fourth Proportional to 103,857.66, 143,323.58 and 56,111.01

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Solution

The fourth proportional to 103,857.66, 143,323.58 and 56,111.01 is: 77,433.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,857.66 : 143,323.58 = 56,111.01 : x
  2. Step 2: Convert to fraction form
    103,857.66/143,323.58 = 56,111.01/x
  3. Step 3: Cross multiply
    103,857.66x = 143,323.58 × 56,111.01
  4. Step 4: Simplify right side
    103,857.66x = 8,042,030,830.62
  5. Step 5: Solve for x
    x = 8,042,030,830.62/103,857.66
  6. Step 6: Final answer
    x = 77,433.20

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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.