Home / 145,401.15-200,806.56-129,551.17

Finding the Fourth Proportional to 145,401.15, 200,806.56 and 129,551.17

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Solution

The fourth proportional to 145,401.15, 200,806.56 and 129,551.17 is: 178,916.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,401.15 : 200,806.56 = 129,551.17 : x
  2. Step 2: Convert to fraction form
    145,401.15/200,806.56 = 129,551.17/x
  3. Step 3: Cross multiply
    145,401.15x = 200,806.56 × 129,551.17
  4. Step 4: Simplify right side
    145,401.15x = 26,014,725,905.01
  5. Step 5: Solve for x
    x = 26,014,725,905.01/145,401.15
  6. Step 6: Final answer
    x = 178,916.92

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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.