Home / 155,946.10-215,205.46-84,325.94

Finding the Fourth Proportional to 155,946.10, 215,205.46 and 84,325.94

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Solution

The fourth proportional to 155,946.10, 215,205.46 and 84,325.94 is: 116,369.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,946.10 : 215,205.46 = 84,325.94 : x
  2. Step 2: Convert to fraction form
    155,946.10/215,205.46 = 84,325.94/x
  3. Step 3: Cross multiply
    155,946.10x = 215,205.46 × 84,325.94
  4. Step 4: Simplify right side
    155,946.10x = 18,147,402,707.63
  5. Step 5: Solve for x
    x = 18,147,402,707.63/155,946.10
  6. Step 6: Final answer
    x = 116,369.71

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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.