Home / 268,409.04-402,363.27-90,792.45

Finding the Fourth Proportional to 268,409.04, 402,363.27 and 90,792.45

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Solution

The fourth proportional to 268,409.04, 402,363.27 and 90,792.45 is: 136,104.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,409.04 : 402,363.27 = 90,792.45 : x
  2. Step 2: Convert to fraction form
    268,409.04/402,363.27 = 90,792.45/x
  3. Step 3: Cross multiply
    268,409.04x = 402,363.27 × 90,792.45
  4. Step 4: Simplify right side
    268,409.04x = 36,531,547,073.31
  5. Step 5: Solve for x
    x = 36,531,547,073.31/268,409.04
  6. Step 6: Final answer
    x = 136,104.01

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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.