Home / 180,929.50-249,683.92-100,358.39

Finding the Fourth Proportional to 180,929.50, 249,683.92 and 100,358.39

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Solution

The fourth proportional to 180,929.50, 249,683.92 and 100,358.39 is: 138,495.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,929.50 : 249,683.92 = 100,358.39 : x
  2. Step 2: Convert to fraction form
    180,929.50/249,683.92 = 100,358.39/x
  3. Step 3: Cross multiply
    180,929.50x = 249,683.92 × 100,358.39
  4. Step 4: Simplify right side
    180,929.50x = 25,057,876,593.40
  5. Step 5: Solve for x
    x = 25,057,876,593.40/180,929.50
  6. Step 6: Final answer
    x = 138,495.25

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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.