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Finding the Fourth Proportional to 127,083.79, 175,383.84 and 70,495.21

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Solution

The fourth proportional to 127,083.79, 175,383.84 and 70,495.21 is: 97,287.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,083.79 : 175,383.84 = 70,495.21 : x
  2. Step 2: Convert to fraction form
    127,083.79/175,383.84 = 70,495.21/x
  3. Step 3: Cross multiply
    127,083.79x = 175,383.84 × 70,495.21
  4. Step 4: Simplify right side
    127,083.79x = 12,363,720,631.41
  5. Step 5: Solve for x
    x = 12,363,720,631.41/127,083.79
  6. Step 6: Final answer
    x = 97,287.94

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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.