Home / 99,212.34-136,898.67-56,762.94

Finding the Fourth Proportional to 99,212.34, 136,898.67 and 56,762.94

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Solution

The fourth proportional to 99,212.34, 136,898.67 and 56,762.94 is: 78,324.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,212.34 : 136,898.67 = 56,762.94 : x
  2. Step 2: Convert to fraction form
    99,212.34/136,898.67 = 56,762.94/x
  3. Step 3: Cross multiply
    99,212.34x = 136,898.67 × 56,762.94
  4. Step 4: Simplify right side
    99,212.34x = 7,770,770,991.29
  5. Step 5: Solve for x
    x = 7,770,770,991.29/99,212.34
  6. Step 6: Final answer
    x = 78,324.64

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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.