Home / 172,775.36-238,430.64-100,192.40

Finding the Fourth Proportional to 172,775.36, 238,430.64 and 100,192.40

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Solution

The fourth proportional to 172,775.36, 238,430.64 and 100,192.40 is: 138,265.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,775.36 : 238,430.64 = 100,192.40 : x
  2. Step 2: Convert to fraction form
    172,775.36/238,430.64 = 100,192.40/x
  3. Step 3: Cross multiply
    172,775.36x = 238,430.64 × 100,192.40
  4. Step 4: Simplify right side
    172,775.36x = 23,888,938,055.14
  5. Step 5: Solve for x
    x = 23,888,938,055.14/172,775.36
  6. Step 6: Final answer
    x = 138,265.88

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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.