Home / 113,886,012.80-170,829,019.20-75,143,963.90

Finding the Fourth Proportional to 113,886,012.80, 170,829,019.20 and 75,143,963.90

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Solution

The fourth proportional to 113,886,012.80, 170,829,019.20 and 75,143,963.90 is: 112,715,945.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,886,012.80 : 170,829,019.20 = 75,143,963.90 : x
  2. Step 2: Convert to fraction form
    113,886,012.80/170,829,019.20 = 75,143,963.90/x
  3. Step 3: Cross multiply
    113,886,012.80x = 170,829,019.20 × 75,143,963.90
  4. Step 4: Simplify right side
    113,886,012.80x = 12,836,769,651,837,208
  5. Step 5: Solve for x
    x = 12,836,769,651,837,208/113,886,012.80
  6. Step 6: Final answer
    x = 112,715,945.85

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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.