Home / 209,505.06-289,123.54-118,864.85

Finding the Fourth Proportional to 209,505.06, 289,123.54 and 118,864.85

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Solution

The fourth proportional to 209,505.06, 289,123.54 and 118,864.85 is: 164,037.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,505.06 : 289,123.54 = 118,864.85 : x
  2. Step 2: Convert to fraction form
    209,505.06/289,123.54 = 118,864.85/x
  3. Step 3: Cross multiply
    209,505.06x = 289,123.54 × 118,864.85
  4. Step 4: Simplify right side
    209,505.06x = 34,366,624,470.79
  5. Step 5: Solve for x
    x = 34,366,624,470.79/209,505.06
  6. Step 6: Final answer
    x = 164,037.20

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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.