Home / 155,217.40-232,826.10-128,973.40

Finding the Fourth Proportional to 155,217.40, 232,826.10 and 128,973.40

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Solution

The fourth proportional to 155,217.40, 232,826.10 and 128,973.40 is: 193,460.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,217.40 : 232,826.10 = 128,973.40 : x
  2. Step 2: Convert to fraction form
    155,217.40/232,826.10 = 128,973.40/x
  3. Step 3: Cross multiply
    155,217.40x = 232,826.10 × 128,973.40
  4. Step 4: Simplify right side
    155,217.40x = 30,028,373,725.74
  5. Step 5: Solve for x
    x = 30,028,373,725.74/155,217.40
  6. Step 6: Final answer
    x = 193,460.10

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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.