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Finding the Fourth Proportional to 168,730.78, 232,894.66 and 105,030.76

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Solution

The fourth proportional to 168,730.78, 232,894.66 and 105,030.76 is: 144,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,730.78 : 232,894.66 = 105,030.76 : x
  2. Step 2: Convert to fraction form
    168,730.78/232,894.66 = 105,030.76/x
  3. Step 3: Cross multiply
    168,730.78x = 232,894.66 × 105,030.76
  4. Step 4: Simplify right side
    168,730.78x = 24,461,103,139.74
  5. Step 5: Solve for x
    x = 24,461,103,139.74/168,730.78
  6. Step 6: Final answer
    x = 144,971.20

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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.