Home / 120,263.10-165,963.09-66,548.32

Finding the Fourth Proportional to 120,263.10, 165,963.09 and 66,548.32

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Solution

The fourth proportional to 120,263.10, 165,963.09 and 66,548.32 is: 91,836.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,263.10 : 165,963.09 = 66,548.32 : x
  2. Step 2: Convert to fraction form
    120,263.10/165,963.09 = 66,548.32/x
  3. Step 3: Cross multiply
    120,263.10x = 165,963.09 × 66,548.32
  4. Step 4: Simplify right side
    120,263.10x = 11,044,564,656.16
  5. Step 5: Solve for x
    x = 11,044,564,656.16/120,263.10
  6. Step 6: Final answer
    x = 91,836.69

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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.