Home / 126,689.12-189,980.22-37,955.24

Finding the Fourth Proportional to 126,689.12, 189,980.22 and 37,955.24

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Solution

The fourth proportional to 126,689.12, 189,980.22 and 37,955.24 is: 56,916.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,689.12 : 189,980.22 = 37,955.24 : x
  2. Step 2: Convert to fraction form
    126,689.12/189,980.22 = 37,955.24/x
  3. Step 3: Cross multiply
    126,689.12x = 189,980.22 × 37,955.24
  4. Step 4: Simplify right side
    126,689.12x = 7,210,744,845.35
  5. Step 5: Solve for x
    x = 7,210,744,845.35/126,689.12
  6. Step 6: Final answer
    x = 56,916.84

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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.