Home / 148,601.51-205,070.16-80,618.47

Finding the Fourth Proportional to 148,601.51, 205,070.16 and 80,618.47

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Solution

The fourth proportional to 148,601.51, 205,070.16 and 80,618.47 is: 111,253.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,601.51 : 205,070.16 = 80,618.47 : x
  2. Step 2: Convert to fraction form
    148,601.51/205,070.16 = 80,618.47/x
  3. Step 3: Cross multiply
    148,601.51x = 205,070.16 × 80,618.47
  4. Step 4: Simplify right side
    148,601.51x = 16,532,441,113.41
  5. Step 5: Solve for x
    x = 16,532,441,113.41/148,601.51
  6. Step 6: Final answer
    x = 111,253.52

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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.