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Finding the Fourth Proportional to 100,130.02, 150,211.62 and 47,510.80

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Solution

The fourth proportional to 100,130.02, 150,211.62 and 47,510.80 is: 71,274.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,130.02 : 150,211.62 = 47,510.80 : x
  2. Step 2: Convert to fraction form
    100,130.02/150,211.62 = 47,510.80/x
  3. Step 3: Cross multiply
    100,130.02x = 150,211.62 × 47,510.80
  4. Step 4: Simplify right side
    100,130.02x = 7,136,674,235.50
  5. Step 5: Solve for x
    x = 7,136,674,235.50/100,130.02
  6. Step 6: Final answer
    x = 71,274.07

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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.