Home / 121,209.48-181,838.88-51,088.68

Finding the Fourth Proportional to 121,209.48, 181,838.88 and 51,088.68

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Solution

The fourth proportional to 121,209.48, 181,838.88 and 51,088.68 is: 76,643.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,209.48 : 181,838.88 = 51,088.68 : x
  2. Step 2: Convert to fraction form
    121,209.48/181,838.88 = 51,088.68/x
  3. Step 3: Cross multiply
    121,209.48x = 181,838.88 × 51,088.68
  4. Step 4: Simplify right side
    121,209.48x = 9,289,908,351.88
  5. Step 5: Solve for x
    x = 9,289,908,351.88/121,209.48
  6. Step 6: Final answer
    x = 76,643.41

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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.