Home / 126,981.40-190,473.72-87,527.92

Finding the Fourth Proportional to 126,981.40, 190,473.72 and 87,527.92

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Solution

The fourth proportional to 126,981.40, 190,473.72 and 87,527.92 is: 131,293.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,981.40 : 190,473.72 = 87,527.92 : x
  2. Step 2: Convert to fraction form
    126,981.40/190,473.72 = 87,527.92/x
  3. Step 3: Cross multiply
    126,981.40x = 190,473.72 × 87,527.92
  4. Step 4: Simplify right side
    126,981.40x = 16,671,768,526.26
  5. Step 5: Solve for x
    x = 16,671,768,526.26/126,981.40
  6. Step 6: Final answer
    x = 131,293.00

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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.