Home / 145,000.80-217,501.20-135,159.30

Finding the Fourth Proportional to 145,000.80, 217,501.20 and 135,159.30

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Solution

The fourth proportional to 145,000.80, 217,501.20 and 135,159.30 is: 202,738.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,000.80 : 217,501.20 = 135,159.30 : x
  2. Step 2: Convert to fraction form
    145,000.80/217,501.20 = 135,159.30/x
  3. Step 3: Cross multiply
    145,000.80x = 217,501.20 × 135,159.30
  4. Step 4: Simplify right side
    145,000.80x = 29,397,309,941.16
  5. Step 5: Solve for x
    x = 29,397,309,941.16/145,000.80
  6. Step 6: Final answer
    x = 202,738.95

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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.