Home / 103,041.40-154,562.10-102,385.30

Finding the Fourth Proportional to 103,041.40, 154,562.10 and 102,385.30

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Solution

The fourth proportional to 103,041.40, 154,562.10 and 102,385.30 is: 153,577.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,041.40 : 154,562.10 = 102,385.30 : x
  2. Step 2: Convert to fraction form
    103,041.40/154,562.10 = 102,385.30/x
  3. Step 3: Cross multiply
    103,041.40x = 154,562.10 × 102,385.30
  4. Step 4: Simplify right side
    103,041.40x = 15,824,886,977.13
  5. Step 5: Solve for x
    x = 15,824,886,977.13/103,041.40
  6. Step 6: Final answer
    x = 153,577.95

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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.