Home / 152,153.24-209,987.16-87,624.59

Finding the Fourth Proportional to 152,153.24, 209,987.16 and 87,624.59

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Solution

The fourth proportional to 152,153.24, 209,987.16 and 87,624.59 is: 120,930.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,153.24 : 209,987.16 = 87,624.59 : x
  2. Step 2: Convert to fraction form
    152,153.24/209,987.16 = 87,624.59/x
  3. Step 3: Cross multiply
    152,153.24x = 209,987.16 × 87,624.59
  4. Step 4: Simplify right side
    152,153.24x = 18,400,037,668.18
  5. Step 5: Solve for x
    x = 18,400,037,668.18/152,153.24
  6. Step 6: Final answer
    x = 120,930.97

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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.