Home / 120,282.16-165,988.35-66,565.81

Finding the Fourth Proportional to 120,282.16, 165,988.35 and 66,565.81

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Solution

The fourth proportional to 120,282.16, 165,988.35 and 66,565.81 is: 91,860.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,282.16 : 165,988.35 = 66,565.81 : x
  2. Step 2: Convert to fraction form
    120,282.16/165,988.35 = 66,565.81/x
  3. Step 3: Cross multiply
    120,282.16x = 165,988.35 × 66,565.81
  4. Step 4: Simplify right side
    120,282.16x = 11,049,148,968.31
  5. Step 5: Solve for x
    x = 11,049,148,968.31/120,282.16
  6. Step 6: Final answer
    x = 91,860.25

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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.