Home / 109,790.88-151,455.60-69,436.68

Finding the Fourth Proportional to 109,790.88, 151,455.60 and 69,436.68

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Solution

The fourth proportional to 109,790.88, 151,455.60 and 69,436.68 is: 95,787.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,790.88 : 151,455.60 = 69,436.68 : x
  2. Step 2: Convert to fraction form
    109,790.88/151,455.60 = 69,436.68/x
  3. Step 3: Cross multiply
    109,790.88x = 151,455.60 × 69,436.68
  4. Step 4: Simplify right side
    109,790.88x = 10,516,574,031.41
  5. Step 5: Solve for x
    x = 10,516,574,031.41/109,790.88
  6. Step 6: Final answer
    x = 95,787.32

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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.