Home / 209,165.70-288,637.62-118,522.75

Finding the Fourth Proportional to 209,165.70, 288,637.62 and 118,522.75

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Solution

The fourth proportional to 209,165.70, 288,637.62 and 118,522.75 is: 163,555.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,165.70 : 288,637.62 = 118,522.75 : x
  2. Step 2: Convert to fraction form
    209,165.70/288,637.62 = 118,522.75/x
  3. Step 3: Cross multiply
    209,165.70x = 288,637.62 × 118,522.75
  4. Step 4: Simplify right side
    209,165.70x = 34,210,123,851.00
  5. Step 5: Solve for x
    x = 34,210,123,851.00/209,165.70
  6. Step 6: Final answer
    x = 163,555.13

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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.