Home / 161,985.40-242,977.98-87,002.32

Finding the Fourth Proportional to 161,985.40, 242,977.98 and 87,002.32

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Solution

The fourth proportional to 161,985.40, 242,977.98 and 87,002.32 is: 130,503.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,985.40 : 242,977.98 = 87,002.32 : x
  2. Step 2: Convert to fraction form
    161,985.40/242,977.98 = 87,002.32/x
  3. Step 3: Cross multiply
    161,985.40x = 242,977.98 × 87,002.32
  4. Step 4: Simplify right side
    161,985.40x = 21,139,647,968.91
  5. Step 5: Solve for x
    x = 21,139,647,968.91/161,985.40
  6. Step 6: Final answer
    x = 130,503.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.