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Finding the Fourth Proportional to 99,000.70, 148,514.40 and 28,879.42

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Solution

The fourth proportional to 99,000.70, 148,514.40 and 28,879.42 is: 43,323.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,000.70 : 148,514.40 = 28,879.42 : x
  2. Step 2: Convert to fraction form
    99,000.70/148,514.40 = 28,879.42/x
  3. Step 3: Cross multiply
    99,000.70x = 148,514.40 × 28,879.42
  4. Step 4: Simplify right side
    99,000.70x = 4,289,009,733.65
  5. Step 5: Solve for x
    x = 4,289,009,733.65/99,000.70
  6. Step 6: Final answer
    x = 43,323.02

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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.