Home / 138,525.48-191,151.36-84,825.72

Finding the Fourth Proportional to 138,525.48, 191,151.36 and 84,825.72

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Solution

The fourth proportional to 138,525.48, 191,151.36 and 84,825.72 is: 117,051.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,525.48 : 191,151.36 = 84,825.72 : x
  2. Step 2: Convert to fraction form
    138,525.48/191,151.36 = 84,825.72/x
  3. Step 3: Cross multiply
    138,525.48x = 191,151.36 × 84,825.72
  4. Step 4: Simplify right side
    138,525.48x = 16,214,551,740.98
  5. Step 5: Solve for x
    x = 16,214,551,740.98/138,525.48
  6. Step 6: Final answer
    x = 117,051.04

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1.5x scale

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.