Home / 249,958.12-374,976.06-81,439.21

Finding the Fourth Proportional to 249,958.12, 374,976.06 and 81,439.21

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Solution

The fourth proportional to 249,958.12, 374,976.06 and 81,439.21 is: 122,171.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,958.12 : 374,976.06 = 81,439.21 : x
  2. Step 2: Convert to fraction form
    249,958.12/374,976.06 = 81,439.21/x
  3. Step 3: Cross multiply
    249,958.12x = 374,976.06 × 81,439.21
  4. Step 4: Simplify right side
    249,958.12x = 30,537,754,095.31
  5. Step 5: Solve for x
    x = 30,537,754,095.31/249,958.12
  6. Step 6: Final answer
    x = 122,171.48

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1.5x scale

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.