Home / 120,265.79-165,964.28-66,547.60

Finding the Fourth Proportional to 120,265.79, 165,964.28 and 66,547.60

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Solution

The fourth proportional to 120,265.79, 165,964.28 and 66,547.60 is: 91,834.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,265.79 : 165,964.28 = 66,547.60 : x
  2. Step 2: Convert to fraction form
    120,265.79/165,964.28 = 66,547.60/x
  3. Step 3: Cross multiply
    120,265.79x = 165,964.28 × 66,547.60
  4. Step 4: Simplify right side
    120,265.79x = 11,044,523,772.08
  5. Step 5: Solve for x
    x = 11,044,523,772.08/120,265.79
  6. Step 6: Final answer
    x = 91,834.30

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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.