Home / 104,136.92-143,709.02-56,390.46

Finding the Fourth Proportional to 104,136.92, 143,709.02 and 56,390.46

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Solution

The fourth proportional to 104,136.92, 143,709.02 and 56,390.46 is: 77,818.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,136.92 : 143,709.02 = 56,390.46 : x
  2. Step 2: Convert to fraction form
    104,136.92/143,709.02 = 56,390.46/x
  3. Step 3: Cross multiply
    104,136.92x = 143,709.02 × 56,390.46
  4. Step 4: Simplify right side
    104,136.92x = 8,103,817,743.95
  5. Step 5: Solve for x
    x = 8,103,817,743.95/104,136.92
  6. Step 6: Final answer
    x = 77,818.87

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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.