Home / 134,424.30-201,636.45-128,519.40

Finding the Fourth Proportional to 134,424.30, 201,636.45 and 128,519.40

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Solution

The fourth proportional to 134,424.30, 201,636.45 and 128,519.40 is: 192,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,424.30 : 201,636.45 = 128,519.40 : x
  2. Step 2: Convert to fraction form
    134,424.30/201,636.45 = 128,519.40/x
  3. Step 3: Cross multiply
    134,424.30x = 201,636.45 × 128,519.40
  4. Step 4: Simplify right side
    134,424.30x = 25,914,195,572.13
  5. Step 5: Solve for x
    x = 25,914,195,572.13/134,424.30
  6. Step 6: Final answer
    x = 192,779.10

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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.