Home / 161,962.08-223,511.04-90,345.12

Finding the Fourth Proportional to 161,962.08, 223,511.04 and 90,345.12

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Solution

The fourth proportional to 161,962.08, 223,511.04 and 90,345.12 is: 124,678.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,962.08 : 223,511.04 = 90,345.12 : x
  2. Step 2: Convert to fraction form
    161,962.08/223,511.04 = 90,345.12/x
  3. Step 3: Cross multiply
    161,962.08x = 223,511.04 × 90,345.12
  4. Step 4: Simplify right side
    161,962.08x = 20,193,131,730.12
  5. Step 5: Solve for x
    x = 20,193,131,730.12/161,962.08
  6. Step 6: Final answer
    x = 124,678.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.