Home / 118,730.44-163,642.98-103,528.36

Finding the Fourth Proportional to 118,730.44, 163,642.98 and 103,528.36

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Solution

The fourth proportional to 118,730.44, 163,642.98 and 103,528.36 is: 142,690.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,730.44 : 163,642.98 = 103,528.36 : x
  2. Step 2: Convert to fraction form
    118,730.44/163,642.98 = 103,528.36/x
  3. Step 3: Cross multiply
    118,730.44x = 163,642.98 × 103,528.36
  4. Step 4: Simplify right side
    118,730.44x = 16,941,689,344.91
  5. Step 5: Solve for x
    x = 16,941,689,344.91/118,730.44
  6. Step 6: Final answer
    x = 142,690.36

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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.