Home / 212,036.14-317,597.48-99,547.79

Finding the Fourth Proportional to 212,036.14, 317,597.48 and 99,547.79

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Solution

The fourth proportional to 212,036.14, 317,597.48 and 99,547.79 is: 149,107.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,036.14 : 317,597.48 = 99,547.79 : x
  2. Step 2: Convert to fraction form
    212,036.14/317,597.48 = 99,547.79/x
  3. Step 3: Cross multiply
    212,036.14x = 317,597.48 × 99,547.79
  4. Step 4: Simplify right side
    212,036.14x = 31,616,127,539.82
  5. Step 5: Solve for x
    x = 31,616,127,539.82/212,036.14
  6. Step 6: Final answer
    x = 149,107.26

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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.