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Finding the Fourth Proportional to 130,366.38, 179,905.61 and 70,750.38

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Solution

The fourth proportional to 130,366.38, 179,905.61 and 70,750.38 is: 97,635.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,366.38 : 179,905.61 = 70,750.38 : x
  2. Step 2: Convert to fraction form
    130,366.38/179,905.61 = 70,750.38/x
  3. Step 3: Cross multiply
    130,366.38x = 179,905.61 × 70,750.38
  4. Step 4: Simplify right side
    130,366.38x = 12,728,390,271.63
  5. Step 5: Solve for x
    x = 12,728,390,271.63/130,366.38
  6. Step 6: Final answer
    x = 97,635.53

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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.