Home / 148,106.58-204,386.10-80,123.28

Finding the Fourth Proportional to 148,106.58, 204,386.10 and 80,123.28

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Solution

The fourth proportional to 148,106.58, 204,386.10 and 80,123.28 is: 110,569.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,106.58 : 204,386.10 = 80,123.28 : x
  2. Step 2: Convert to fraction form
    148,106.58/204,386.10 = 80,123.28/x
  3. Step 3: Cross multiply
    148,106.58x = 204,386.10 × 80,123.28
  4. Step 4: Simplify right side
    148,106.58x = 16,376,084,718.41
  5. Step 5: Solve for x
    x = 16,376,084,718.41/148,106.58
  6. Step 6: Final answer
    x = 110,569.60

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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.