Home / 209,105.12-288,555.66-118,459.24

Finding the Fourth Proportional to 209,105.12, 288,555.66 and 118,459.24

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Solution

The fourth proportional to 209,105.12, 288,555.66 and 118,459.24 is: 163,468.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,105.12 : 288,555.66 = 118,459.24 : x
  2. Step 2: Convert to fraction form
    209,105.12/288,555.66 = 118,459.24/x
  3. Step 3: Cross multiply
    209,105.12x = 288,555.66 × 118,459.24
  4. Step 4: Simplify right side
    209,105.12x = 34,182,083,459.91
  5. Step 5: Solve for x
    x = 34,182,083,459.91/209,105.12
  6. Step 6: Final answer
    x = 163,468.42

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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.