Home / 154,981.86-213,897.51-87,026.94

Finding the Fourth Proportional to 154,981.86, 213,897.51 and 87,026.94

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Solution

The fourth proportional to 154,981.86, 213,897.51 and 87,026.94 is: 120,109.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,981.86 : 213,897.51 = 87,026.94 : x
  2. Step 2: Convert to fraction form
    154,981.86/213,897.51 = 87,026.94/x
  3. Step 3: Cross multiply
    154,981.86x = 213,897.51 × 87,026.94
  4. Step 4: Simplify right side
    154,981.86x = 18,614,845,768.92
  5. Step 5: Solve for x
    x = 18,614,845,768.92/154,981.86
  6. Step 6: Final answer
    x = 120,109.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.