Home / 120,088.43-165,725.15-66,374.29

Finding the Fourth Proportional to 120,088.43, 165,725.15 and 66,374.29

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Solution

The fourth proportional to 120,088.43, 165,725.15 and 66,374.29 is: 91,598.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,088.43 : 165,725.15 = 66,374.29 : x
  2. Step 2: Convert to fraction form
    120,088.43/165,725.15 = 66,374.29/x
  3. Step 3: Cross multiply
    120,088.43x = 165,725.15 × 66,374.29
  4. Step 4: Simplify right side
    120,088.43x = 10,999,889,166.39
  5. Step 5: Solve for x
    x = 10,999,889,166.39/120,088.43
  6. Step 6: Final answer
    x = 91,598.24

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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.