Home / 120,526.31-166,323.65-66,810.86

Finding the Fourth Proportional to 120,526.31, 166,323.65 and 66,810.86

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Solution

The fourth proportional to 120,526.31, 166,323.65 and 66,810.86 is: 92,197.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,526.31 : 166,323.65 = 66,810.86 : x
  2. Step 2: Convert to fraction form
    120,526.31/166,323.65 = 66,810.86/x
  3. Step 3: Cross multiply
    120,526.31x = 166,323.65 × 66,810.86
  4. Step 4: Simplify right side
    120,526.31x = 11,112,224,929.17
  5. Step 5: Solve for x
    x = 11,112,224,929.17/120,526.31
  6. Step 6: Final answer
    x = 92,197.51

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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.