Home / 91,629.60-126,509.76-70,370.88

Finding the Fourth Proportional to 91,629.60, 126,509.76 and 70,370.88

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Solution

The fourth proportional to 91,629.60, 126,509.76 and 70,370.88 is: 97,158.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,629.60 : 126,509.76 = 70,370.88 : x
  2. Step 2: Convert to fraction form
    91,629.60/126,509.76 = 70,370.88/x
  3. Step 3: Cross multiply
    91,629.60x = 126,509.76 × 70,370.88
  4. Step 4: Simplify right side
    91,629.60x = 8,902,603,139.79
  5. Step 5: Solve for x
    x = 8,902,603,139.79/91,629.60
  6. Step 6: Final answer
    x = 97,158.59

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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.