Home / 149,030.76-205,666.34-81,964.52

Finding the Fourth Proportional to 149,030.76, 205,666.34 and 81,964.52

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Solution

The fourth proportional to 149,030.76, 205,666.34 and 81,964.52 is: 113,113.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,030.76 : 205,666.34 = 81,964.52 : x
  2. Step 2: Convert to fraction form
    149,030.76/205,666.34 = 81,964.52/x
  3. Step 3: Cross multiply
    149,030.76x = 205,666.34 × 81,964.52
  4. Step 4: Simplify right side
    149,030.76x = 16,857,342,838.26
  5. Step 5: Solve for x
    x = 16,857,342,838.26/149,030.76
  6. Step 6: Final answer
    x = 113,113.18

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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.