Home / 104,285.68-143,915.28-56,538.92

Finding the Fourth Proportional to 104,285.68, 143,915.28 and 56,538.92

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Solution

The fourth proportional to 104,285.68, 143,915.28 and 56,538.92 is: 78,024.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,285.68 : 143,915.28 = 56,538.92 : x
  2. Step 2: Convert to fraction form
    104,285.68/143,915.28 = 56,538.92/x
  3. Step 3: Cross multiply
    104,285.68x = 143,915.28 × 56,538.92
  4. Step 4: Simplify right side
    104,285.68x = 8,136,814,502.70
  5. Step 5: Solve for x
    x = 8,136,814,502.70/104,285.68
  6. Step 6: Final answer
    x = 78,024.27

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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.