Home / 155,278.79-214,292.33-87,317.16

Finding the Fourth Proportional to 155,278.79, 214,292.33 and 87,317.16

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Solution

The fourth proportional to 155,278.79, 214,292.33 and 87,317.16 is: 120,501.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,278.79 : 214,292.33 = 87,317.16 : x
  2. Step 2: Convert to fraction form
    155,278.79/214,292.33 = 87,317.16/x
  3. Step 3: Cross multiply
    155,278.79x = 214,292.33 × 87,317.16
  4. Step 4: Simplify right side
    155,278.79x = 18,711,397,665.38
  5. Step 5: Solve for x
    x = 18,711,397,665.38/155,278.79
  6. Step 6: Final answer
    x = 120,501.95

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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.