Home / 121,106.13-181,688.55-38,000.13

Finding the Fourth Proportional to 121,106.13, 181,688.55 and 38,000.13

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Solution

The fourth proportional to 121,106.13, 181,688.55 and 38,000.13 is: 57,009.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,106.13 : 181,688.55 = 38,000.13 : x
  2. Step 2: Convert to fraction form
    121,106.13/181,688.55 = 38,000.13/x
  3. Step 3: Cross multiply
    121,106.13x = 181,688.55 × 38,000.13
  4. Step 4: Simplify right side
    121,106.13x = 6,904,188,519.51
  5. Step 5: Solve for x
    x = 6,904,188,519.51/121,106.13
  6. Step 6: Final answer
    x = 57,009.41

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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.