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Finding the Fourth Proportional to 163,992.32, 245,834.88 and 89,002.40

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Solution

The fourth proportional to 163,992.32, 245,834.88 and 89,002.40 is: 133,420.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,992.32 : 245,834.88 = 89,002.40 : x
  2. Step 2: Convert to fraction form
    163,992.32/245,834.88 = 89,002.40/x
  3. Step 3: Cross multiply
    163,992.32x = 245,834.88 × 89,002.40
  4. Step 4: Simplify right side
    163,992.32x = 21,879,894,323.71
  5. Step 5: Solve for x
    x = 21,879,894,323.71/163,992.32
  6. Step 6: Final answer
    x = 133,420.24

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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.