Home / 136,149.89-204,011.46-86,124.32

Finding the Fourth Proportional to 136,149.89, 204,011.46 and 86,124.32

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Solution

The fourth proportional to 136,149.89, 204,011.46 and 86,124.32 is: 129,051.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,149.89 : 204,011.46 = 86,124.32 : x
  2. Step 2: Convert to fraction form
    136,149.89/204,011.46 = 86,124.32/x
  3. Step 3: Cross multiply
    136,149.89x = 204,011.46 × 86,124.32
  4. Step 4: Simplify right side
    136,149.89x = 17,570,347,244.65
  5. Step 5: Solve for x
    x = 17,570,347,244.65/136,149.89
  6. Step 6: Final answer
    x = 129,051.50

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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.