Home / 127,784.60-176,343.95-70,426.01

Finding the Fourth Proportional to 127,784.60, 176,343.95 and 70,426.01

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Solution

The fourth proportional to 127,784.60, 176,343.95 and 70,426.01 is: 97,188.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,784.60 : 176,343.95 = 70,426.01 : x
  2. Step 2: Convert to fraction form
    127,784.60/176,343.95 = 70,426.01/x
  3. Step 3: Cross multiply
    127,784.60x = 176,343.95 × 70,426.01
  4. Step 4: Simplify right side
    127,784.60x = 12,419,200,786.14
  5. Step 5: Solve for x
    x = 12,419,200,786.14/127,784.60
  6. Step 6: Final answer
    x = 97,188.56

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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.