Home / 112,065.10-168,097.65-40,987.60

Finding the Fourth Proportional to 112,065.10, 168,097.65 and 40,987.60

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Solution

The fourth proportional to 112,065.10, 168,097.65 and 40,987.60 is: 61,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,065.10 : 168,097.65 = 40,987.60 : x
  2. Step 2: Convert to fraction form
    112,065.10/168,097.65 = 40,987.60/x
  3. Step 3: Cross multiply
    112,065.10x = 168,097.65 × 40,987.60
  4. Step 4: Simplify right side
    112,065.10x = 6,889,919,239.14
  5. Step 5: Solve for x
    x = 6,889,919,239.14/112,065.10
  6. Step 6: Final answer
    x = 61,481.40

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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.