Home / 126,779.31-174,967.18-70,190.68

Finding the Fourth Proportional to 126,779.31, 174,967.18 and 70,190.68

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Solution

The fourth proportional to 126,779.31, 174,967.18 and 70,190.68 is: 96,869.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,779.31 : 174,967.18 = 70,190.68 : x
  2. Step 2: Convert to fraction form
    126,779.31/174,967.18 = 70,190.68/x
  3. Step 3: Cross multiply
    126,779.31x = 174,967.18 × 70,190.68
  4. Step 4: Simplify right side
    126,779.31x = 12,281,065,954.78
  5. Step 5: Solve for x
    x = 12,281,065,954.78/126,779.31
  6. Step 6: Final answer
    x = 96,869.64

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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.