Home / 249,880.07-374,819.81-81,400.13

Finding the Fourth Proportional to 249,880.07, 374,819.81 and 81,400.13

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Solution

The fourth proportional to 249,880.07, 374,819.81 and 81,400.13 is: 122,100.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,880.07 : 374,819.81 = 81,400.13 : x
  2. Step 2: Convert to fraction form
    249,880.07/374,819.81 = 81,400.13/x
  3. Step 3: Cross multiply
    249,880.07x = 374,819.81 × 81,400.13
  4. Step 4: Simplify right side
    249,880.07x = 30,510,378,979.48
  5. Step 5: Solve for x
    x = 30,510,378,979.48/249,880.07
  6. Step 6: Final answer
    x = 122,100.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.