Home / 156,965.90-235,443.63-68,219.51

Finding the Fourth Proportional to 156,965.90, 235,443.63 and 68,219.51

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Solution

The fourth proportional to 156,965.90, 235,443.63 and 68,219.51 is: 102,327.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,965.90 : 235,443.63 = 68,219.51 : x
  2. Step 2: Convert to fraction form
    156,965.90/235,443.63 = 68,219.51/x
  3. Step 3: Cross multiply
    156,965.90x = 235,443.63 × 68,219.51
  4. Step 4: Simplify right side
    156,965.90x = 16,061,849,071.22
  5. Step 5: Solve for x
    x = 16,061,849,071.22/156,965.90
  6. Step 6: Final answer
    x = 102,327.00

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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.