Home / 209,423.30-289,010.64-118,782.95

Finding the Fourth Proportional to 209,423.30, 289,010.64 and 118,782.95

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Solution

The fourth proportional to 209,423.30, 289,010.64 and 118,782.95 is: 163,924.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,423.30 : 289,010.64 = 118,782.95 : x
  2. Step 2: Convert to fraction form
    209,423.30/289,010.64 = 118,782.95/x
  3. Step 3: Cross multiply
    209,423.30x = 289,010.64 × 118,782.95
  4. Step 4: Simplify right side
    209,423.30x = 34,329,534,955.53
  5. Step 5: Solve for x
    x = 34,329,534,955.53/209,423.30
  6. Step 6: Final answer
    x = 163,924.15

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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.