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Finding the Fourth Proportional to 130,149.50, 179,606.43 and 70,533.50

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Solution

The fourth proportional to 130,149.50, 179,606.43 and 70,533.50 is: 97,336.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,149.50 : 179,606.43 = 70,533.50 : x
  2. Step 2: Convert to fraction form
    130,149.50/179,606.43 = 70,533.50/x
  3. Step 3: Cross multiply
    130,149.50x = 179,606.43 × 70,533.50
  4. Step 4: Simplify right side
    130,149.50x = 12,668,270,130.41
  5. Step 5: Solve for x
    x = 12,668,270,130.41/130,149.50
  6. Step 6: Final answer
    x = 97,336.30

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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.