Home / 172,653.47-238,262.21-100,070.36

Finding the Fourth Proportional to 172,653.47, 238,262.21 and 100,070.36

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Solution

The fourth proportional to 172,653.47, 238,262.21 and 100,070.36 is: 138,097.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,653.47 : 238,262.21 = 100,070.36 : x
  2. Step 2: Convert to fraction form
    172,653.47/238,262.21 = 100,070.36/x
  3. Step 3: Cross multiply
    172,653.47x = 238,262.21 × 100,070.36
  4. Step 4: Simplify right side
    172,653.47x = 23,842,984,187.96
  5. Step 5: Solve for x
    x = 23,842,984,187.96/172,653.47
  6. Step 6: Final answer
    x = 138,097.34

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1.5x scale

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.