Home / 106,312.55-159,304.80-92,206.40

Finding the Fourth Proportional to 106,312.55, 159,304.80 and 92,206.40

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Solution

The fourth proportional to 106,312.55, 159,304.80 and 92,206.40 is: 138,167.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,312.55 : 159,304.80 = 92,206.40 : x
  2. Step 2: Convert to fraction form
    106,312.55/159,304.80 = 92,206.40/x
  3. Step 3: Cross multiply
    106,312.55x = 159,304.80 × 92,206.40
  4. Step 4: Simplify right side
    106,312.55x = 14,688,922,110.72
  5. Step 5: Solve for x
    x = 14,688,922,110.72/106,312.55
  6. Step 6: Final answer
    x = 138,167.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.