Home / 139,979.52-209,966.40-46,486.08

Finding the Fourth Proportional to 139,979.52, 209,966.40 and 46,486.08

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Solution

The fourth proportional to 139,979.52, 209,966.40 and 46,486.08 is: 69,728.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,979.52 : 209,966.40 = 46,486.08 : x
  2. Step 2: Convert to fraction form
    139,979.52/209,966.40 = 46,486.08/x
  3. Step 3: Cross multiply
    139,979.52x = 209,966.40 × 46,486.08
  4. Step 4: Simplify right side
    139,979.52x = 9,760,514,867.71
  5. Step 5: Solve for x
    x = 9,760,514,867.71/139,979.52
  6. Step 6: Final answer
    x = 69,728.16

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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.