Home / 121,519.96-180,897.47-115,794.52

Finding the Fourth Proportional to 121,519.96, 180,897.47 and 115,794.52

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Solution

The fourth proportional to 121,519.96, 180,897.47 and 115,794.52 is: 172,374.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,519.96 : 180,897.47 = 115,794.52 : x
  2. Step 2: Convert to fraction form
    121,519.96/180,897.47 = 115,794.52/x
  3. Step 3: Cross multiply
    121,519.96x = 180,897.47 × 115,794.52
  4. Step 4: Simplify right side
    121,519.96x = 20,946,935,707.86
  5. Step 5: Solve for x
    x = 20,946,935,707.86/121,519.96
  6. Step 6: Final answer
    x = 172,374.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.