Home / 209,130.66-288,602.04-113,637.36

Finding the Fourth Proportional to 209,130.66, 288,602.04 and 113,637.36

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Solution

The fourth proportional to 209,130.66, 288,602.04 and 113,637.36 is: 156,820.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,130.66 : 288,602.04 = 113,637.36 : x
  2. Step 2: Convert to fraction form
    209,130.66/288,602.04 = 113,637.36/x
  3. Step 3: Cross multiply
    209,130.66x = 288,602.04 × 113,637.36
  4. Step 4: Simplify right side
    209,130.66x = 32,795,972,473.20
  5. Step 5: Solve for x
    x = 32,795,972,473.20/209,130.66
  6. Step 6: Final answer
    x = 156,820.49

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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.