Home / 103,266.50-154,598.88-76,730.10

Finding the Fourth Proportional to 103,266.50, 154,598.88 and 76,730.10

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Solution

The fourth proportional to 103,266.50, 154,598.88 and 76,730.10 is: 114,871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,266.50 : 154,598.88 = 76,730.10 : x
  2. Step 2: Convert to fraction form
    103,266.50/154,598.88 = 76,730.10/x
  3. Step 3: Cross multiply
    103,266.50x = 154,598.88 × 76,730.10
  4. Step 4: Simplify right side
    103,266.50x = 11,862,387,668.29
  5. Step 5: Solve for x
    x = 11,862,387,668.29/103,266.50
  6. Step 6: Final answer
    x = 114,871.60

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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.