Home / 209,339.05-288,881.72-118,703.29

Finding the Fourth Proportional to 209,339.05, 288,881.72 and 118,703.29

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Solution

The fourth proportional to 209,339.05, 288,881.72 and 118,703.29 is: 163,807.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,339.05 : 288,881.72 = 118,703.29 : x
  2. Step 2: Convert to fraction form
    209,339.05/288,881.72 = 118,703.29/x
  3. Step 3: Cross multiply
    209,339.05x = 288,881.72 × 118,703.29
  4. Step 4: Simplify right side
    209,339.05x = 34,291,209,922.08
  5. Step 5: Solve for x
    x = 34,291,209,922.08/209,339.05
  6. Step 6: Final answer
    x = 163,807.04

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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.