Home / 172,091.72-237,403.79-111,681.31

Finding the Fourth Proportional to 172,091.72, 237,403.79 and 111,681.31

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Solution

The fourth proportional to 172,091.72, 237,403.79 and 111,681.31 is: 154,066.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,091.72 : 237,403.79 = 111,681.31 : x
  2. Step 2: Convert to fraction form
    172,091.72/237,403.79 = 111,681.31/x
  3. Step 3: Cross multiply
    172,091.72x = 237,403.79 × 111,681.31
  4. Step 4: Simplify right side
    172,091.72x = 26,513,565,114.25
  5. Step 5: Solve for x
    x = 26,513,565,114.25/172,091.72
  6. Step 6: Final answer
    x = 154,066.48

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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.