Home / 119,140.97-164,451.45-76,699.50

Finding the Fourth Proportional to 119,140.97, 164,451.45 and 76,699.50

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Solution

The fourth proportional to 119,140.97, 164,451.45 and 76,699.50 is: 105,869.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,140.97 : 164,451.45 = 76,699.50 : x
  2. Step 2: Convert to fraction form
    119,140.97/164,451.45 = 76,699.50/x
  3. Step 3: Cross multiply
    119,140.97x = 164,451.45 × 76,699.50
  4. Step 4: Simplify right side
    119,140.97x = 12,613,343,989.28
  5. Step 5: Solve for x
    x = 12,613,343,989.28/119,140.97
  6. Step 6: Final answer
    x = 105,869.08

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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.