Home / 121,417.40-182,126.10-117,961.40

Finding the Fourth Proportional to 121,417.40, 182,126.10 and 117,961.40

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Solution

The fourth proportional to 121,417.40, 182,126.10 and 117,961.40 is: 176,942.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,417.40 : 182,126.10 = 117,961.40 : x
  2. Step 2: Convert to fraction form
    121,417.40/182,126.10 = 117,961.40/x
  3. Step 3: Cross multiply
    121,417.40x = 182,126.10 × 117,961.40
  4. Step 4: Simplify right side
    121,417.40x = 21,483,849,732.54
  5. Step 5: Solve for x
    x = 21,483,849,732.54/121,417.40
  6. Step 6: Final answer
    x = 176,942.10

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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.