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Finding the Fourth Proportional to 130,064.64, 179,488.08 and 70,448.64

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Solution

The fourth proportional to 130,064.64, 179,488.08 and 70,448.64 is: 97,218.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,064.64 : 179,488.08 = 70,448.64 : x
  2. Step 2: Convert to fraction form
    130,064.64/179,488.08 = 70,448.64/x
  3. Step 3: Cross multiply
    130,064.64x = 179,488.08 × 70,448.64
  4. Step 4: Simplify right side
    130,064.64x = 12,644,691,132.21
  5. Step 5: Solve for x
    x = 12,644,691,132.21/130,064.64
  6. Step 6: Final answer
    x = 97,218.51

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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.