Home / 152,885.36-211,081.70-99,323.02

Finding the Fourth Proportional to 152,885.36, 211,081.70 and 99,323.02

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Solution

The fourth proportional to 152,885.36, 211,081.70 and 99,323.02 is: 137,130.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,885.36 : 211,081.70 = 99,323.02 : x
  2. Step 2: Convert to fraction form
    152,885.36/211,081.70 = 99,323.02/x
  3. Step 3: Cross multiply
    152,885.36x = 211,081.70 × 99,323.02
  4. Step 4: Simplify right side
    152,885.36x = 20,965,271,910.73
  5. Step 5: Solve for x
    x = 20,965,271,910.73/152,885.36
  6. Step 6: Final answer
    x = 137,130.67

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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.