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Finding the Fourth Proportional to 121,238.93, 181,858.46 and 56,316.89

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Solution

The fourth proportional to 121,238.93, 181,858.46 and 56,316.89 is: 84,475.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,238.93 : 181,858.46 = 56,316.89 : x
  2. Step 2: Convert to fraction form
    121,238.93/181,858.46 = 56,316.89/x
  3. Step 3: Cross multiply
    121,238.93x = 181,858.46 × 56,316.89
  4. Step 4: Simplify right side
    121,238.93x = 10,241,701,696.51
  5. Step 5: Solve for x
    x = 10,241,701,696.51/121,238.93
  6. Step 6: Final answer
    x = 84,475.36

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1.5x scale

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.