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Finding the Fourth Proportional to 130,352.50, 179,886.45 and 70,736.50

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Solution

The fourth proportional to 130,352.50, 179,886.45 and 70,736.50 is: 97,616.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,352.50 : 179,886.45 = 70,736.50 : x
  2. Step 2: Convert to fraction form
    130,352.50/179,886.45 = 70,736.50/x
  3. Step 3: Cross multiply
    130,352.50x = 179,886.45 × 70,736.50
  4. Step 4: Simplify right side
    130,352.50x = 12,724,537,870.43
  5. Step 5: Solve for x
    x = 12,724,537,870.43/130,352.50
  6. Step 6: Final answer
    x = 97,616.37

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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.