Home / 189,734.34-284,403.15-89,775.47

Finding the Fourth Proportional to 189,734.34, 284,403.15 and 89,775.47

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Solution

The fourth proportional to 189,734.34, 284,403.15 and 89,775.47 is: 134,569.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,734.34 : 284,403.15 = 89,775.47 : x
  2. Step 2: Convert to fraction form
    189,734.34/284,403.15 = 89,775.47/x
  3. Step 3: Cross multiply
    189,734.34x = 284,403.15 × 89,775.47
  4. Step 4: Simplify right side
    189,734.34x = 25,532,425,038.71
  5. Step 5: Solve for x
    x = 25,532,425,038.71/189,734.34
  6. Step 6: Final answer
    x = 134,569.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.