Home / 155,417.56-214,475.90-87,434.58

Finding the Fourth Proportional to 155,417.56, 214,475.90 and 87,434.58

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Solution

The fourth proportional to 155,417.56, 214,475.90 and 87,434.58 is: 120,659.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,417.56 : 214,475.90 = 87,434.58 : x
  2. Step 2: Convert to fraction form
    155,417.56/214,475.90 = 87,434.58/x
  3. Step 3: Cross multiply
    155,417.56x = 214,475.90 × 87,434.58
  4. Step 4: Simplify right side
    155,417.56x = 18,752,610,236.62
  5. Step 5: Solve for x
    x = 18,752,610,236.62/155,417.56
  6. Step 6: Final answer
    x = 120,659.53

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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.