Home / 145,302.57-217,952.46-86,095.62

Finding the Fourth Proportional to 145,302.57, 217,952.46 and 86,095.62

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Solution

The fourth proportional to 145,302.57, 217,952.46 and 86,095.62 is: 129,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,302.57 : 217,952.46 = 86,095.62 : x
  2. Step 2: Convert to fraction form
    145,302.57/217,952.46 = 86,095.62/x
  3. Step 3: Cross multiply
    145,302.57x = 217,952.46 × 86,095.62
  4. Step 4: Simplify right side
    145,302.57x = 18,764,752,174.23
  5. Step 5: Solve for x
    x = 18,764,752,174.23/145,302.57
  6. Step 6: Final answer
    x = 129,142.60

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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.