Home / 151,699.38-209,345.23-84,631.38

Finding the Fourth Proportional to 151,699.38, 209,345.23 and 84,631.38

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Solution

The fourth proportional to 151,699.38, 209,345.23 and 84,631.38 is: 116,791.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,699.38 : 209,345.23 = 84,631.38 : x
  2. Step 2: Convert to fraction form
    151,699.38/209,345.23 = 84,631.38/x
  3. Step 3: Cross multiply
    151,699.38x = 209,345.23 × 84,631.38
  4. Step 4: Simplify right side
    151,699.38x = 17,717,175,711.32
  5. Step 5: Solve for x
    x = 17,717,175,711.32/151,699.38
  6. Step 6: Final answer
    x = 116,791.35

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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.