Home / 180,935.94-249,693.10-100,368.70

Finding the Fourth Proportional to 180,935.94, 249,693.10 and 100,368.70

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Solution

The fourth proportional to 180,935.94, 249,693.10 and 100,368.70 is: 138,509.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,935.94 : 249,693.10 = 100,368.70 : x
  2. Step 2: Convert to fraction form
    180,935.94/249,693.10 = 100,368.70/x
  3. Step 3: Cross multiply
    180,935.94x = 249,693.10 × 100,368.70
  4. Step 4: Simplify right side
    180,935.94x = 25,061,371,845.97
  5. Step 5: Solve for x
    x = 25,061,371,845.97/180,935.94
  6. Step 6: Final answer
    x = 138,509.64

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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.