Home / 155,342.68-214,370.85-87,359.63

Finding the Fourth Proportional to 155,342.68, 214,370.85 and 87,359.63

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Solution

The fourth proportional to 155,342.68, 214,370.85 and 87,359.63 is: 120,555.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,342.68 : 214,370.85 = 87,359.63 : x
  2. Step 2: Convert to fraction form
    155,342.68/214,370.85 = 87,359.63/x
  3. Step 3: Cross multiply
    155,342.68x = 214,370.85 × 87,359.63
  4. Step 4: Simplify right side
    155,342.68x = 18,727,358,674.71
  5. Step 5: Solve for x
    x = 18,727,358,674.71/155,342.68
  6. Step 6: Final answer
    x = 120,555.14

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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.