Home / 124,128.26-171,309.60-73,157.40

Finding the Fourth Proportional to 124,128.26, 171,309.60 and 73,157.40

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Solution

The fourth proportional to 124,128.26, 171,309.60 and 73,157.40 is: 100,964.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,128.26 : 171,309.60 = 73,157.40 : x
  2. Step 2: Convert to fraction form
    124,128.26/171,309.60 = 73,157.40/x
  3. Step 3: Cross multiply
    124,128.26x = 171,309.60 × 73,157.40
  4. Step 4: Simplify right side
    124,128.26x = 12,532,564,931.04
  5. Step 5: Solve for x
    x = 12,532,564,931.04/124,128.26
  6. Step 6: Final answer
    x = 100,964.64

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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.