Home / 103,975.57-143,485.86-56,228.91

Finding the Fourth Proportional to 103,975.57, 143,485.86 and 56,228.91

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Solution

The fourth proportional to 103,975.57, 143,485.86 and 56,228.91 is: 77,595.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,975.57 : 143,485.86 = 56,228.91 : x
  2. Step 2: Convert to fraction form
    103,975.57/143,485.86 = 56,228.91/x
  3. Step 3: Cross multiply
    103,975.57x = 143,485.86 × 56,228.91
  4. Step 4: Simplify right side
    103,975.57x = 8,068,053,508.21
  5. Step 5: Solve for x
    x = 8,068,053,508.21/103,975.57
  6. Step 6: Final answer
    x = 77,595.67

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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.