Home / 125,419.59-173,133.02-77,029.36

Finding the Fourth Proportional to 125,419.59, 173,133.02 and 77,029.36

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Solution

The fourth proportional to 125,419.59, 173,133.02 and 77,029.36 is: 106,333.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,419.59 : 173,133.02 = 77,029.36 : x
  2. Step 2: Convert to fraction form
    125,419.59/173,133.02 = 77,029.36/x
  3. Step 3: Cross multiply
    125,419.59x = 173,133.02 × 77,029.36
  4. Step 4: Simplify right side
    125,419.59x = 13,336,325,485.21
  5. Step 5: Solve for x
    x = 13,336,325,485.21/125,419.59
  6. Step 6: Final answer
    x = 106,333.67

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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.