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Finding the Fourth Proportional to 145,113.80, 217,670.70 and 134,616.20

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Solution

The fourth proportional to 145,113.80, 217,670.70 and 134,616.20 is: 201,924.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,113.80 : 217,670.70 = 134,616.20 : x
  2. Step 2: Convert to fraction form
    145,113.80/217,670.70 = 134,616.20/x
  3. Step 3: Cross multiply
    145,113.80x = 217,670.70 × 134,616.20
  4. Step 4: Simplify right side
    145,113.80x = 29,302,002,485.34
  5. Step 5: Solve for x
    x = 29,302,002,485.34/145,113.80
  6. Step 6: Final answer
    x = 201,924.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.