Home / 118,729.44-163,641.60-103,527.36

Finding the Fourth Proportional to 118,729.44, 163,641.60 and 103,527.36

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Solution

The fourth proportional to 118,729.44, 163,641.60 and 103,527.36 is: 142,688.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,729.44 : 163,641.60 = 103,527.36 : x
  2. Step 2: Convert to fraction form
    118,729.44/163,641.60 = 103,527.36/x
  3. Step 3: Cross multiply
    118,729.44x = 163,641.60 × 103,527.36
  4. Step 4: Simplify right side
    118,729.44x = 16,941,382,834.18
  5. Step 5: Solve for x
    x = 16,941,382,834.18/118,729.44
  6. Step 6: Final answer
    x = 142,688.98

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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.