Home / 148,814.10-223,221.15-78,830.10

Finding the Fourth Proportional to 148,814.10, 223,221.15 and 78,830.10

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Solution

The fourth proportional to 148,814.10, 223,221.15 and 78,830.10 is: 118,245.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,814.10 : 223,221.15 = 78,830.10 : x
  2. Step 2: Convert to fraction form
    148,814.10/223,221.15 = 78,830.10/x
  3. Step 3: Cross multiply
    148,814.10x = 223,221.15 × 78,830.10
  4. Step 4: Simplify right side
    148,814.10x = 17,596,545,576.62
  5. Step 5: Solve for x
    x = 17,596,545,576.62/148,814.10
  6. Step 6: Final answer
    x = 118,245.15

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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.