Home / 112,770.94-169,090.79-42,655.72

Finding the Fourth Proportional to 112,770.94, 169,090.79 and 42,655.72

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Solution

The fourth proportional to 112,770.94, 169,090.79 and 42,655.72 is: 63,958.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,770.94 : 169,090.79 = 42,655.72 : x
  2. Step 2: Convert to fraction form
    112,770.94/169,090.79 = 42,655.72/x
  3. Step 3: Cross multiply
    112,770.94x = 169,090.79 × 42,655.72
  4. Step 4: Simplify right side
    112,770.94x = 7,212,688,756.81
  5. Step 5: Solve for x
    x = 7,212,688,756.81/112,770.94
  6. Step 6: Final answer
    x = 63,958.75

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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.