Home / 137,409.07-189,624.10-76,159.17

Finding the Fourth Proportional to 137,409.07, 189,624.10 and 76,159.17

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Solution

The fourth proportional to 137,409.07, 189,624.10 and 76,159.17 is: 105,099.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,409.07 : 189,624.10 = 76,159.17 : x
  2. Step 2: Convert to fraction form
    137,409.07/189,624.10 = 76,159.17/x
  3. Step 3: Cross multiply
    137,409.07x = 189,624.10 × 76,159.17
  4. Step 4: Simplify right side
    137,409.07x = 14,441,613,403.54
  5. Step 5: Solve for x
    x = 14,441,613,403.54/137,409.07
  6. Step 6: Final answer
    x = 105,099.42

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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.