Home / 136,967.10-189,010.96-76,538.24

Finding the Fourth Proportional to 136,967.10, 189,010.96 and 76,538.24

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Solution

The fourth proportional to 136,967.10, 189,010.96 and 76,538.24 is: 105,620.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,967.10 : 189,010.96 = 76,538.24 : x
  2. Step 2: Convert to fraction form
    136,967.10/189,010.96 = 76,538.24/x
  3. Step 3: Cross multiply
    136,967.10x = 189,010.96 × 76,538.24
  4. Step 4: Simplify right side
    136,967.10x = 14,466,566,219.11
  5. Step 5: Solve for x
    x = 14,466,566,219.11/136,967.10
  6. Step 6: Final answer
    x = 105,620.74

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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.