Home / 112,936.60-169,404.90-83,412.10

Finding the Fourth Proportional to 112,936.60, 169,404.90 and 83,412.10

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Solution

The fourth proportional to 112,936.60, 169,404.90 and 83,412.10 is: 125,118.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,936.60 : 169,404.90 = 83,412.10 : x
  2. Step 2: Convert to fraction form
    112,936.60/169,404.90 = 83,412.10/x
  3. Step 3: Cross multiply
    112,936.60x = 169,404.90 × 83,412.10
  4. Step 4: Simplify right side
    112,936.60x = 14,130,418,459.29
  5. Step 5: Solve for x
    x = 14,130,418,459.29/112,936.60
  6. Step 6: Final answer
    x = 125,118.15

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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.