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Finding the Fourth Proportional to 124.68, 172 and 93.50

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Solution

The fourth proportional to 124.68, 172 and 93.50 is: 128.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.68 : 172 = 93.50 : x
  2. Step 2: Convert to fraction form
    124.68/172 = 93.50/x
  3. Step 3: Cross multiply
    124.68x = 172 × 93.50
  4. Step 4: Simplify right side
    124.68x = 16,082
  5. Step 5: Solve for x
    x = 16,082/124.68
  6. Step 6: Final answer
    x = 128.99

Related Problems

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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.