Home / 148,801.50-205,359.84-81,746.46

Finding the Fourth Proportional to 148,801.50, 205,359.84 and 81,746.46

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Solution

The fourth proportional to 148,801.50, 205,359.84 and 81,746.46 is: 112,817.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,801.50 : 205,359.84 = 81,746.46 : x
  2. Step 2: Convert to fraction form
    148,801.50/205,359.84 = 81,746.46/x
  3. Step 3: Cross multiply
    148,801.50x = 205,359.84 × 81,746.46
  4. Step 4: Simplify right side
    148,801.50x = 16,787,439,946.17
  5. Step 5: Solve for x
    x = 16,787,439,946.17/148,801.50
  6. Step 6: Final answer
    x = 112,817.68

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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.