Home / 180,713.59-249,386.20-100,142.44

Finding the Fourth Proportional to 180,713.59, 249,386.20 and 100,142.44

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Solution

The fourth proportional to 180,713.59, 249,386.20 and 100,142.44 is: 138,197.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,713.59 : 249,386.20 = 100,142.44 : x
  2. Step 2: Convert to fraction form
    180,713.59/249,386.20 = 100,142.44/x
  3. Step 3: Cross multiply
    180,713.59x = 249,386.20 × 100,142.44
  4. Step 4: Simplify right side
    180,713.59x = 24,974,141,696.51
  5. Step 5: Solve for x
    x = 24,974,141,696.51/180,713.59
  6. Step 6: Final answer
    x = 138,197.37

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1.5x scale

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.