Home / 121,106.25-181,688.55-38,000.25

Finding the Fourth Proportional to 121,106.25, 181,688.55 and 38,000.25

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Solution

The fourth proportional to 121,106.25, 181,688.55 and 38,000.25 is: 57,009.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,106.25 : 181,688.55 = 38,000.25 : x
  2. Step 2: Convert to fraction form
    121,106.25/181,688.55 = 38,000.25/x
  3. Step 3: Cross multiply
    121,106.25x = 181,688.55 × 38,000.25
  4. Step 4: Simplify right side
    121,106.25x = 6,904,210,322.14
  5. Step 5: Solve for x
    x = 6,904,210,322.14/121,106.25
  6. Step 6: Final answer
    x = 57,009.53

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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.