Home / 152,154.74-209,989.23-87,626.09

Finding the Fourth Proportional to 152,154.74, 209,989.23 and 87,626.09

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Solution

The fourth proportional to 152,154.74, 209,989.23 and 87,626.09 is: 120,933.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,154.74 : 209,989.23 = 87,626.09 : x
  2. Step 2: Convert to fraction form
    152,154.74/209,989.23 = 87,626.09/x
  3. Step 3: Cross multiply
    152,154.74x = 209,989.23 × 87,626.09
  4. Step 4: Simplify right side
    152,154.74x = 18,400,534,117.06
  5. Step 5: Solve for x
    x = 18,400,534,117.06/152,154.74
  6. Step 6: Final answer
    x = 120,933.04

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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.