Home / 113,438.80-169,985.40-95,813.20

Finding the Fourth Proportional to 113,438.80, 169,985.40 and 95,813.20

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Solution

The fourth proportional to 113,438.80, 169,985.40 and 95,813.20 is: 143,573.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,438.80 : 169,985.40 = 95,813.20 : x
  2. Step 2: Convert to fraction form
    113,438.80/169,985.40 = 95,813.20/x
  3. Step 3: Cross multiply
    113,438.80x = 169,985.40 × 95,813.20
  4. Step 4: Simplify right side
    113,438.80x = 16,286,845,127.28
  5. Step 5: Solve for x
    x = 16,286,845,127.28/113,438.80
  6. Step 6: Final answer
    x = 143,573.85

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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.