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Finding the Fourth Proportional to 130,348.48, 179,880 and 70,732.48

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Solution

The fourth proportional to 130,348.48, 179,880 and 70,732.48 is: 97,610.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,348.48 : 179,880 = 70,732.48 : x
  2. Step 2: Convert to fraction form
    130,348.48/179,880 = 70,732.48/x
  3. Step 3: Cross multiply
    130,348.48x = 179,880 × 70,732.48
  4. Step 4: Simplify right side
    130,348.48x = 12,723,358,502.40
  5. Step 5: Solve for x
    x = 12,723,358,502.40/130,348.48
  6. Step 6: Final answer
    x = 97,610.33

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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.