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Finding the Fourth Proportional to 130,153.70, 195,007.75 and 71,030.90

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Solution

The fourth proportional to 130,153.70, 195,007.75 and 71,030.90 is: 106,424.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,153.70 : 195,007.75 = 71,030.90 : x
  2. Step 2: Convert to fraction form
    130,153.70/195,007.75 = 71,030.90/x
  3. Step 3: Cross multiply
    130,153.70x = 195,007.75 × 71,030.90
  4. Step 4: Simplify right side
    130,153.70x = 13,851,576,299.42
  5. Step 5: Solve for x
    x = 13,851,576,299.42/130,153.70
  6. Step 6: Final answer
    x = 106,424.76

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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.