Home / 148,916.79-205,506.76-80,933.76

Finding the Fourth Proportional to 148,916.79, 205,506.76 and 80,933.76

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Solution

The fourth proportional to 148,916.79, 205,506.76 and 80,933.76 is: 111,689.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,916.79 : 205,506.76 = 80,933.76 : x
  2. Step 2: Convert to fraction form
    148,916.79/205,506.76 = 80,933.76/x
  3. Step 3: Cross multiply
    148,916.79x = 205,506.76 × 80,933.76
  4. Step 4: Simplify right side
    148,916.79x = 16,632,434,792.22
  5. Step 5: Solve for x
    x = 16,632,434,792.22/148,916.79
  6. Step 6: Final answer
    x = 111,689.45

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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.