Home / 245,621.10-368,431.65-87,854.70

Finding the Fourth Proportional to 245,621.10, 368,431.65 and 87,854.70

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Solution

The fourth proportional to 245,621.10, 368,431.65 and 87,854.70 is: 131,782.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,621.10 : 368,431.65 = 87,854.70 : x
  2. Step 2: Convert to fraction form
    245,621.10/368,431.65 = 87,854.70/x
  3. Step 3: Cross multiply
    245,621.10x = 368,431.65 × 87,854.70
  4. Step 4: Simplify right side
    245,621.10x = 32,368,452,081.26
  5. Step 5: Solve for x
    x = 32,368,452,081.26/245,621.10
  6. Step 6: Final answer
    x = 131,782.05

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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.