Home / 84,637.10-126,988.05-83,308.70

Finding the Fourth Proportional to 84,637.10, 126,988.05 and 83,308.70

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Solution

The fourth proportional to 84,637.10, 126,988.05 and 83,308.70 is: 124,994.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,637.10 : 126,988.05 = 83,308.70 : x
  2. Step 2: Convert to fraction form
    84,637.10/126,988.05 = 83,308.70/x
  3. Step 3: Cross multiply
    84,637.10x = 126,988.05 × 83,308.70
  4. Step 4: Simplify right side
    84,637.10x = 10,579,209,361.04
  5. Step 5: Solve for x
    x = 10,579,209,361.04/84,637.10
  6. Step 6: Final answer
    x = 124,994.94

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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.