Home / 209,320.12-288,869.68-118,675.04

Finding the Fourth Proportional to 209,320.12, 288,869.68 and 118,675.04

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Solution

The fourth proportional to 209,320.12, 288,869.68 and 118,675.04 is: 163,776.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,320.12 : 288,869.68 = 118,675.04 : x
  2. Step 2: Convert to fraction form
    209,320.12/288,869.68 = 118,675.04/x
  3. Step 3: Cross multiply
    209,320.12x = 288,869.68 × 118,675.04
  4. Step 4: Simplify right side
    209,320.12x = 34,281,620,828.79
  5. Step 5: Solve for x
    x = 34,281,620,828.79/209,320.12
  6. Step 6: Final answer
    x = 163,776.04

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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.