Home / 292,061.19-438,122.55-121,263.51

Finding the Fourth Proportional to 292,061.19, 438,122.55 and 121,263.51

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Solution

The fourth proportional to 292,061.19, 438,122.55 and 121,263.51 is: 181,908.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,061.19 : 438,122.55 = 121,263.51 : x
  2. Step 2: Convert to fraction form
    292,061.19/438,122.55 = 121,263.51/x
  3. Step 3: Cross multiply
    292,061.19x = 438,122.55 × 121,263.51
  4. Step 4: Simplify right side
    292,061.19x = 53,128,275,601.03
  5. Step 5: Solve for x
    x = 53,128,275,601.03/292,061.19
  6. Step 6: Final answer
    x = 181,908.03

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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.