Home / 138,935.80-191,625.62-119,587.64

Finding the Fourth Proportional to 138,935.80, 191,625.62 and 119,587.64

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Solution

The fourth proportional to 138,935.80, 191,625.62 and 119,587.64 is: 164,939.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,935.80 : 191,625.62 = 119,587.64 : x
  2. Step 2: Convert to fraction form
    138,935.80/191,625.62 = 119,587.64/x
  3. Step 3: Cross multiply
    138,935.80x = 191,625.62 × 119,587.64
  4. Step 4: Simplify right side
    138,935.80x = 22,916,055,547.39
  5. Step 5: Solve for x
    x = 22,916,055,547.39/138,935.80
  6. Step 6: Final answer
    x = 164,939.89

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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.