Home / 189,931.80-262,210.86-126,363

Finding the Fourth Proportional to 189,931.80, 262,210.86 and 126,363

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Solution

The fourth proportional to 189,931.80, 262,210.86 and 126,363 is: 174,450.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,931.80 : 262,210.86 = 126,363 : x
  2. Step 2: Convert to fraction form
    189,931.80/262,210.86 = 126,363/x
  3. Step 3: Cross multiply
    189,931.80x = 262,210.86 × 126,363
  4. Step 4: Simplify right side
    189,931.80x = 33,133,750,902.18
  5. Step 5: Solve for x
    x = 33,133,750,902.18/189,931.80
  6. Step 6: Final answer
    x = 174,450.78

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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.