Home / 113,302.05-156,357.90-61,619.63

Finding the Fourth Proportional to 113,302.05, 156,357.90 and 61,619.63

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Solution

The fourth proportional to 113,302.05, 156,357.90 and 61,619.63 is: 85,035.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,302.05 : 156,357.90 = 61,619.63 : x
  2. Step 2: Convert to fraction form
    113,302.05/156,357.90 = 61,619.63/x
  3. Step 3: Cross multiply
    113,302.05x = 156,357.90 × 61,619.63
  4. Step 4: Simplify right side
    113,302.05x = 9,634,715,163.79
  5. Step 5: Solve for x
    x = 9,634,715,163.79/113,302.05
  6. Step 6: Final answer
    x = 85,035.66

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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.