Home / 155,965.80-233,948.70-139,636.20

Finding the Fourth Proportional to 155,965.80, 233,948.70 and 139,636.20

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Solution

The fourth proportional to 155,965.80, 233,948.70 and 139,636.20 is: 209,454.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,965.80 : 233,948.70 = 139,636.20 : x
  2. Step 2: Convert to fraction form
    155,965.80/233,948.70 = 139,636.20/x
  3. Step 3: Cross multiply
    155,965.80x = 233,948.70 × 139,636.20
  4. Step 4: Simplify right side
    155,965.80x = 32,667,707,462.94
  5. Step 5: Solve for x
    x = 32,667,707,462.94/155,965.80
  6. Step 6: Final answer
    x = 209,454.30

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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.