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Finding the Fourth Proportional to 189,929.52, 262,154.52 and 118,267.20

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Solution

The fourth proportional to 189,929.52, 262,154.52 and 118,267.20 is: 163,240.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,929.52 : 262,154.52 = 118,267.20 : x
  2. Step 2: Convert to fraction form
    189,929.52/262,154.52 = 118,267.20/x
  3. Step 3: Cross multiply
    189,929.52x = 262,154.52 × 118,267.20
  4. Step 4: Simplify right side
    189,929.52x = 31,004,281,047.74
  5. Step 5: Solve for x
    x = 31,004,281,047.74/189,929.52
  6. Step 6: Final answer
    x = 163,240.98

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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.