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Finding the Fourth Proportional to 130,300.38, 179,814.87 and 70,684.38

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Solution

The fourth proportional to 130,300.38, 179,814.87 and 70,684.38 is: 97,544.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,300.38 : 179,814.87 = 70,684.38 : x
  2. Step 2: Convert to fraction form
    130,300.38/179,814.87 = 70,684.38/x
  3. Step 3: Cross multiply
    130,300.38x = 179,814.87 × 70,684.38
  4. Step 4: Simplify right side
    130,300.38x = 12,710,102,600.73
  5. Step 5: Solve for x
    x = 12,710,102,600.73/130,300.38
  6. Step 6: Final answer
    x = 97,544.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.