Home / 189,509.02-261,492.67-108,921.48

Finding the Fourth Proportional to 189,509.02, 261,492.67 and 108,921.48

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Solution

The fourth proportional to 189,509.02, 261,492.67 and 108,921.48 is: 150,294.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,509.02 : 261,492.67 = 108,921.48 : x
  2. Step 2: Convert to fraction form
    189,509.02/261,492.67 = 108,921.48/x
  3. Step 3: Cross multiply
    189,509.02x = 261,492.67 × 108,921.48
  4. Step 4: Simplify right side
    189,509.02x = 28,482,167,781.11
  5. Step 5: Solve for x
    x = 28,482,167,781.11/189,509.02
  6. Step 6: Final answer
    x = 150,294.53

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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.