Home / 201,631.86-278,249.67-110,985.84

Finding the Fourth Proportional to 201,631.86, 278,249.67 and 110,985.84

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Solution

The fourth proportional to 201,631.86, 278,249.67 and 110,985.84 is: 153,159.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,631.86 : 278,249.67 = 110,985.84 : x
  2. Step 2: Convert to fraction form
    201,631.86/278,249.67 = 110,985.84/x
  3. Step 3: Cross multiply
    201,631.86x = 278,249.67 × 110,985.84
  4. Step 4: Simplify right side
    201,631.86x = 30,881,773,354.67
  5. Step 5: Solve for x
    x = 30,881,773,354.67/201,631.86
  6. Step 6: Final answer
    x = 153,159.19

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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.