Home / 249,640.20-374,460.30-81,160.20

Finding the Fourth Proportional to 249,640.20, 374,460.30 and 81,160.20

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Solution

The fourth proportional to 249,640.20, 374,460.30 and 81,160.20 is: 121,740.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,640.20 : 374,460.30 = 81,160.20 : x
  2. Step 2: Convert to fraction form
    249,640.20/374,460.30 = 81,160.20/x
  3. Step 3: Cross multiply
    249,640.20x = 374,460.30 × 81,160.20
  4. Step 4: Simplify right side
    249,640.20x = 30,391,272,840.06
  5. Step 5: Solve for x
    x = 30,391,272,840.06/249,640.20
  6. Step 6: Final answer
    x = 121,740.30

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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.