Home / 126,842.71-190,140.54-70,631.14

Finding the Fourth Proportional to 126,842.71, 190,140.54 and 70,631.14

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Solution

The fourth proportional to 126,842.71, 190,140.54 and 70,631.14 is: 105,877.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,842.71 : 190,140.54 = 70,631.14 : x
  2. Step 2: Convert to fraction form
    126,842.71/190,140.54 = 70,631.14/x
  3. Step 3: Cross multiply
    126,842.71x = 190,140.54 × 70,631.14
  4. Step 4: Simplify right side
    126,842.71x = 13,429,843,100.42
  5. Step 5: Solve for x
    x = 13,429,843,100.42/126,842.71
  6. Step 6: Final answer
    x = 105,877.93

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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.