Home / 133,830.90-200,682.80-77,688.22

Finding the Fourth Proportional to 133,830.90, 200,682.80 and 77,688.22

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Solution

The fourth proportional to 133,830.90, 200,682.80 and 77,688.22 is: 116,495.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,830.90 : 200,682.80 = 77,688.22 : x
  2. Step 2: Convert to fraction form
    133,830.90/200,682.80 = 77,688.22/x
  3. Step 3: Cross multiply
    133,830.90x = 200,682.80 × 77,688.22
  4. Step 4: Simplify right side
    133,830.90x = 15,590,689,516.62
  5. Step 5: Solve for x
    x = 15,590,689,516.62/133,830.90
  6. Step 6: Final answer
    x = 116,495.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.