Home / 209,130.95-288,602.54-113,637.65

Finding the Fourth Proportional to 209,130.95, 288,602.54 and 113,637.65

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Solution

The fourth proportional to 209,130.95, 288,602.54 and 113,637.65 is: 156,820.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,130.95 : 288,602.54 = 113,637.65 : x
  2. Step 2: Convert to fraction form
    209,130.95/288,602.54 = 113,637.65/x
  3. Step 3: Cross multiply
    209,130.95x = 288,602.54 × 113,637.65
  4. Step 4: Simplify right side
    209,130.95x = 32,796,112,418.43
  5. Step 5: Solve for x
    x = 32,796,112,418.43/209,130.95
  6. Step 6: Final answer
    x = 156,820.94

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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.