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Finding the Fourth Proportional to 100,123.80, 150,185.70 and 93,514.20

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Solution

The fourth proportional to 100,123.80, 150,185.70 and 93,514.20 is: 140,271.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,123.80 : 150,185.70 = 93,514.20 : x
  2. Step 2: Convert to fraction form
    100,123.80/150,185.70 = 93,514.20/x
  3. Step 3: Cross multiply
    100,123.80x = 150,185.70 × 93,514.20
  4. Step 4: Simplify right side
    100,123.80x = 14,044,495,586.94
  5. Step 5: Solve for x
    x = 14,044,495,586.94/100,123.80
  6. Step 6: Final answer
    x = 140,271.30

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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.