Home / 154,113.48-212,665.86-87,032.52

Finding the Fourth Proportional to 154,113.48, 212,665.86 and 87,032.52

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Solution

The fourth proportional to 154,113.48, 212,665.86 and 87,032.52 is: 120,098.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,113.48 : 212,665.86 = 87,032.52 : x
  2. Step 2: Convert to fraction form
    154,113.48/212,665.86 = 87,032.52/x
  3. Step 3: Cross multiply
    154,113.48x = 212,665.86 × 87,032.52
  4. Step 4: Simplify right side
    154,113.48x = 18,508,845,713.77
  5. Step 5: Solve for x
    x = 18,508,845,713.77/154,113.48
  6. Step 6: Final answer
    x = 120,098.81

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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.