Home / 103,857.56-143,323.25-56,110.76

Finding the Fourth Proportional to 103,857.56, 143,323.25 and 56,110.76

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Solution

The fourth proportional to 103,857.56, 143,323.25 and 56,110.76 is: 77,432.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,857.56 : 143,323.25 = 56,110.76 : x
  2. Step 2: Convert to fraction form
    103,857.56/143,323.25 = 56,110.76/x
  3. Step 3: Cross multiply
    103,857.56x = 143,323.25 × 56,110.76
  4. Step 4: Simplify right side
    103,857.56x = 8,041,975,486.00
  5. Step 5: Solve for x
    x = 8,041,975,486.00/103,857.56
  6. Step 6: Final answer
    x = 77,432.74

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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.