Home / 104,030.20-156,045.30-102,993.40

Finding the Fourth Proportional to 104,030.20, 156,045.30 and 102,993.40

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Solution

The fourth proportional to 104,030.20, 156,045.30 and 102,993.40 is: 154,490.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,030.20 : 156,045.30 = 102,993.40 : x
  2. Step 2: Convert to fraction form
    104,030.20/156,045.30 = 102,993.40/x
  3. Step 3: Cross multiply
    104,030.20x = 156,045.30 × 102,993.40
  4. Step 4: Simplify right side
    104,030.20x = 16,071,636,001.02
  5. Step 5: Solve for x
    x = 16,071,636,001.02/104,030.20
  6. Step 6: Final answer
    x = 154,490.10

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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.