Home / 209,174.28-288,656.76-113,681.28

Finding the Fourth Proportional to 209,174.28, 288,656.76 and 113,681.28

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Solution

The fourth proportional to 209,174.28, 288,656.76 and 113,681.28 is: 156,878.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,174.28 : 288,656.76 = 113,681.28 : x
  2. Step 2: Convert to fraction form
    209,174.28/288,656.76 = 113,681.28/x
  3. Step 3: Cross multiply
    209,174.28x = 288,656.76 × 113,681.28
  4. Step 4: Simplify right side
    209,174.28x = 32,814,869,957.45
  5. Step 5: Solve for x
    x = 32,814,869,957.45/209,174.28
  6. Step 6: Final answer
    x = 156,878.13

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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.