Home / 209,929.02-289,691.10-119,272.40

Finding the Fourth Proportional to 209,929.02, 289,691.10 and 119,272.40

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Solution

The fourth proportional to 209,929.02, 289,691.10 and 119,272.40 is: 164,589.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,929.02 : 289,691.10 = 119,272.40 : x
  2. Step 2: Convert to fraction form
    209,929.02/289,691.10 = 119,272.40/x
  3. Step 3: Cross multiply
    209,929.02x = 289,691.10 × 119,272.40
  4. Step 4: Simplify right side
    209,929.02x = 34,552,152,755.64
  5. Step 5: Solve for x
    x = 34,552,152,755.64/209,929.02
  6. Step 6: Final answer
    x = 164,589.69

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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.