Home / 155,279.55-214,293.36-87,317.91

Finding the Fourth Proportional to 155,279.55, 214,293.36 and 87,317.91

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Solution

The fourth proportional to 155,279.55, 214,293.36 and 87,317.91 is: 120,502.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,279.55 : 214,293.36 = 87,317.91 : x
  2. Step 2: Convert to fraction form
    155,279.55/214,293.36 = 87,317.91/x
  3. Step 3: Cross multiply
    155,279.55x = 214,293.36 × 87,317.91
  4. Step 4: Simplify right side
    155,279.55x = 18,711,648,322.08
  5. Step 5: Solve for x
    x = 18,711,648,322.08/155,279.55
  6. Step 6: Final answer
    x = 120,502.98

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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.