Home / 180,721.52-249,389.78-109,089.06

Finding the Fourth Proportional to 180,721.52, 249,389.78 and 109,089.06

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Solution

The fourth proportional to 180,721.52, 249,389.78 and 109,089.06 is: 150,539.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,721.52 : 249,389.78 = 109,089.06 : x
  2. Step 2: Convert to fraction form
    180,721.52/249,389.78 = 109,089.06/x
  3. Step 3: Cross multiply
    180,721.52x = 249,389.78 × 109,089.06
  4. Step 4: Simplify right side
    180,721.52x = 27,205,696,128.36
  5. Step 5: Solve for x
    x = 27,205,696,128.36/180,721.52
  6. Step 6: Final answer
    x = 150,539.33

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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.