Home / 209,229.90-288,742.23-118,595.10

Finding the Fourth Proportional to 209,229.90, 288,742.23 and 118,595.10

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Solution

The fourth proportional to 209,229.90, 288,742.23 and 118,595.10 is: 163,664.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,229.90 : 288,742.23 = 118,595.10 : x
  2. Step 2: Convert to fraction form
    209,229.90/288,742.23 = 118,595.10/x
  3. Step 3: Cross multiply
    209,229.90x = 288,742.23 × 118,595.10
  4. Step 4: Simplify right side
    209,229.90x = 34,243,413,641.07
  5. Step 5: Solve for x
    x = 34,243,413,641.07/209,229.90
  6. Step 6: Final answer
    x = 163,664.05

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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.