Home / 126,909.42-174,779.67-124,154.22

Finding the Fourth Proportional to 126,909.42, 174,779.67 and 124,154.22

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Solution

The fourth proportional to 126,909.42, 174,779.67 and 124,154.22 is: 170,985.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,909.42 : 174,779.67 = 124,154.22 : x
  2. Step 2: Convert to fraction form
    126,909.42/174,779.67 = 124,154.22/x
  3. Step 3: Cross multiply
    126,909.42x = 174,779.67 × 124,154.22
  4. Step 4: Simplify right side
    126,909.42x = 21,699,633,600.71
  5. Step 5: Solve for x
    x = 21,699,633,600.71/126,909.42
  6. Step 6: Final answer
    x = 170,985.21

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1.5x scale

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.