Home / 156,666.70-235,129.65-72,556.30

Finding the Fourth Proportional to 156,666.70, 235,129.65 and 72,556.30

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Solution

The fourth proportional to 156,666.70, 235,129.65 and 72,556.30 is: 108,894.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,666.70 : 235,129.65 = 72,556.30 : x
  2. Step 2: Convert to fraction form
    156,666.70/235,129.65 = 72,556.30/x
  3. Step 3: Cross multiply
    156,666.70x = 235,129.65 × 72,556.30
  4. Step 4: Simplify right side
    156,666.70x = 17,060,137,424.30
  5. Step 5: Solve for x
    x = 17,060,137,424.30/156,666.70
  6. Step 6: Final answer
    x = 108,894.47

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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.