Home / 156,687.30-235,030.95-139,628.70

Finding the Fourth Proportional to 156,687.30, 235,030.95 and 139,628.70

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Solution

The fourth proportional to 156,687.30, 235,030.95 and 139,628.70 is: 209,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,687.30 : 235,030.95 = 139,628.70 : x
  2. Step 2: Convert to fraction form
    156,687.30/235,030.95 = 139,628.70/x
  3. Step 3: Cross multiply
    156,687.30x = 235,030.95 × 139,628.70
  4. Step 4: Simplify right side
    156,687.30x = 32,817,066,008.27
  5. Step 5: Solve for x
    x = 32,817,066,008.27/156,687.30
  6. Step 6: Final answer
    x = 209,443.05

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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.