Home / 136,562.50-188,457.05-76,136.94

Finding the Fourth Proportional to 136,562.50, 188,457.05 and 76,136.94

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Solution

The fourth proportional to 136,562.50, 188,457.05 and 76,136.94 is: 105,069.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,562.50 : 188,457.05 = 76,136.94 : x
  2. Step 2: Convert to fraction form
    136,562.50/188,457.05 = 76,136.94/x
  3. Step 3: Cross multiply
    136,562.50x = 188,457.05 × 76,136.94
  4. Step 4: Simplify right side
    136,562.50x = 14,348,543,108.43
  5. Step 5: Solve for x
    x = 14,348,543,108.43/136,562.50
  6. Step 6: Final answer
    x = 105,069.42

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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.