Home / 102,985.80-154,284.30-52,895.40

Finding the Fourth Proportional to 102,985.80, 154,284.30 and 52,895.40

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Solution

The fourth proportional to 102,985.80, 154,284.30 and 52,895.40 is: 79,243.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,985.80 : 154,284.30 = 52,895.40 : x
  2. Step 2: Convert to fraction form
    102,985.80/154,284.30 = 52,895.40/x
  3. Step 3: Cross multiply
    102,985.80x = 154,284.30 × 52,895.40
  4. Step 4: Simplify right side
    102,985.80x = 8,160,929,762.22
  5. Step 5: Solve for x
    x = 8,160,929,762.22/102,985.80
  6. Step 6: Final answer
    x = 79,243.25

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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.