Home / 126,421.19-174,466.55-72,706.25

Finding the Fourth Proportional to 126,421.19, 174,466.55 and 72,706.25

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Solution

The fourth proportional to 126,421.19, 174,466.55 and 72,706.25 is: 100,337.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,421.19 : 174,466.55 = 72,706.25 : x
  2. Step 2: Convert to fraction form
    126,421.19/174,466.55 = 72,706.25/x
  3. Step 3: Cross multiply
    126,421.19x = 174,466.55 × 72,706.25
  4. Step 4: Simplify right side
    126,421.19x = 12,684,807,365.07
  5. Step 5: Solve for x
    x = 12,684,807,365.07/126,421.19
  6. Step 6: Final answer
    x = 100,337.67

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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.