Home / 148,981.76-205,594.81-81,913.76

Finding the Fourth Proportional to 148,981.76, 205,594.81 and 81,913.76

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Solution

The fourth proportional to 148,981.76, 205,594.81 and 81,913.76 is: 113,040.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,981.76 : 205,594.81 = 81,913.76 : x
  2. Step 2: Convert to fraction form
    148,981.76/205,594.81 = 81,913.76/x
  3. Step 3: Cross multiply
    148,981.76x = 205,594.81 × 81,913.76
  4. Step 4: Simplify right side
    148,981.76x = 16,841,043,923.59
  5. Step 5: Solve for x
    x = 16,841,043,923.59/148,981.76
  6. Step 6: Final answer
    x = 113,040.98

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1.5x scale

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.