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Finding the Fourth Proportional to 127,493.68, 175,938.78 and 70,903.84

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Solution

The fourth proportional to 127,493.68, 175,938.78 and 70,903.84 is: 97,845.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,493.68 : 175,938.78 = 70,903.84 : x
  2. Step 2: Convert to fraction form
    127,493.68/175,938.78 = 70,903.84/x
  3. Step 3: Cross multiply
    127,493.68x = 175,938.78 × 70,903.84
  4. Step 4: Simplify right side
    127,493.68x = 12,474,735,106.92
  5. Step 5: Solve for x
    x = 12,474,735,106.92/127,493.68
  6. Step 6: Final answer
    x = 97,845.91

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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.