Home / 131,533.52-181,516.02-71,104.20

Finding the Fourth Proportional to 131,533.52, 181,516.02 and 71,104.20

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Solution

The fourth proportional to 131,533.52, 181,516.02 and 71,104.20 is: 98,123.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,533.52 : 181,516.02 = 71,104.20 : x
  2. Step 2: Convert to fraction form
    131,533.52/181,516.02 = 71,104.20/x
  3. Step 3: Cross multiply
    131,533.52x = 181,516.02 × 71,104.20
  4. Step 4: Simplify right side
    131,533.52x = 12,906,551,389.28
  5. Step 5: Solve for x
    x = 12,906,551,389.28/131,533.52
  6. Step 6: Final answer
    x = 98,123.67

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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.