Home / 118,303.85-163,278.06-75,238.45

Finding the Fourth Proportional to 118,303.85, 163,278.06 and 75,238.45

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Solution

The fourth proportional to 118,303.85, 163,278.06 and 75,238.45 is: 103,840.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,303.85 : 163,278.06 = 75,238.45 : x
  2. Step 2: Convert to fraction form
    118,303.85/163,278.06 = 75,238.45/x
  3. Step 3: Cross multiply
    118,303.85x = 163,278.06 × 75,238.45
  4. Step 4: Simplify right side
    118,303.85x = 12,284,787,337.02
  5. Step 5: Solve for x
    x = 12,284,787,337.02/118,303.85
  6. Step 6: Final answer
    x = 103,840.98

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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.