Home / 137,366.07-189,522.14-76,928.55

Finding the Fourth Proportional to 137,366.07, 189,522.14 and 76,928.55

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Solution

The fourth proportional to 137,366.07, 189,522.14 and 76,928.55 is: 106,137.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,366.07 : 189,522.14 = 76,928.55 : x
  2. Step 2: Convert to fraction form
    137,366.07/189,522.14 = 76,928.55/x
  3. Step 3: Cross multiply
    137,366.07x = 189,522.14 × 76,928.55
  4. Step 4: Simplify right side
    137,366.07x = 14,579,663,038.45
  5. Step 5: Solve for x
    x = 14,579,663,038.45/137,366.07
  6. Step 6: Final answer
    x = 106,137.29

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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.