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Finding the Fourth Proportional to 169,904, 254,886.76 and 70,008.64

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Solution

The fourth proportional to 169,904, 254,886.76 and 70,008.64 is: 105,025.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,904 : 254,886.76 = 70,008.64 : x
  2. Step 2: Convert to fraction form
    169,904/254,886.76 = 70,008.64/x
  3. Step 3: Cross multiply
    169,904x = 254,886.76 × 70,008.64
  4. Step 4: Simplify right side
    169,904x = 17,844,275,421.61
  5. Step 5: Solve for x
    x = 17,844,275,421.61/169,904
  6. Step 6: Final answer
    x = 105,025.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.