Home / 166,129.50-249,191.91-77,333.34

Finding the Fourth Proportional to 166,129.50, 249,191.91 and 77,333.34

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Solution

The fourth proportional to 166,129.50, 249,191.91 and 77,333.34 is: 115,998.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,129.50 : 249,191.91 = 77,333.34 : x
  2. Step 2: Convert to fraction form
    166,129.50/249,191.91 = 77,333.34/x
  3. Step 3: Cross multiply
    166,129.50x = 249,191.91 × 77,333.34
  4. Step 4: Simplify right side
    166,129.50x = 19,270,842,701.28
  5. Step 5: Solve for x
    x = 19,270,842,701.28/166,129.50
  6. Step 6: Final answer
    x = 115,998.92

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1.5x scale

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.