Home / 103,857.57-143,323.23-56,110.77

Finding the Fourth Proportional to 103,857.57, 143,323.23 and 56,110.77

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Solution

The fourth proportional to 103,857.57, 143,323.23 and 56,110.77 is: 77,432.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,857.57 : 143,323.23 = 56,110.77 : x
  2. Step 2: Convert to fraction form
    103,857.57/143,323.23 = 56,110.77/x
  3. Step 3: Cross multiply
    103,857.57x = 143,323.23 × 56,110.77
  4. Step 4: Simplify right side
    103,857.57x = 8,041,976,794.19
  5. Step 5: Solve for x
    x = 8,041,976,794.19/103,857.57
  6. Step 6: Final answer
    x = 77,432.75

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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.