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Finding the Fourth Proportional to 130,679.34, 180,275.67 and 88,252.62

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Solution

The fourth proportional to 130,679.34, 180,275.67 and 88,252.62 is: 121,746.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,679.34 : 180,275.67 = 88,252.62 : x
  2. Step 2: Convert to fraction form
    130,679.34/180,275.67 = 88,252.62/x
  3. Step 3: Cross multiply
    130,679.34x = 180,275.67 × 88,252.62
  4. Step 4: Simplify right side
    130,679.34x = 15,909,800,199.76
  5. Step 5: Solve for x
    x = 15,909,800,199.76/130,679.34
  6. Step 6: Final answer
    x = 121,746.87

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