Home / 132,720.16-183,193.84-90,303.29

Finding the Fourth Proportional to 132,720.16, 183,193.84 and 90,303.29

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Solution

The fourth proportional to 132,720.16, 183,193.84 and 90,303.29 is: 124,645.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,720.16 : 183,193.84 = 90,303.29 : x
  2. Step 2: Convert to fraction form
    132,720.16/183,193.84 = 90,303.29/x
  3. Step 3: Cross multiply
    132,720.16x = 183,193.84 × 90,303.29
  4. Step 4: Simplify right side
    132,720.16x = 16,543,006,459.73
  5. Step 5: Solve for x
    x = 16,543,006,459.73/132,720.16
  6. Step 6: Final answer
    x = 124,645.77

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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.