Home / 120,157.07-165,888.70-74,896.36

Finding the Fourth Proportional to 120,157.07, 165,888.70 and 74,896.36

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Solution

The fourth proportional to 120,157.07, 165,888.70 and 74,896.36 is: 103,401.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,157.07 : 165,888.70 = 74,896.36 : x
  2. Step 2: Convert to fraction form
    120,157.07/165,888.70 = 74,896.36/x
  3. Step 3: Cross multiply
    120,157.07x = 165,888.70 × 74,896.36
  4. Step 4: Simplify right side
    120,157.07x = 12,424,459,193.17
  5. Step 5: Solve for x
    x = 12,424,459,193.17/120,157.07
  6. Step 6: Final answer
    x = 103,401.82

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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.