Home / 156,868.20-235,302.30-83,140.20

Finding the Fourth Proportional to 156,868.20, 235,302.30 and 83,140.20

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Solution

The fourth proportional to 156,868.20, 235,302.30 and 83,140.20 is: 124,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,868.20 : 235,302.30 = 83,140.20 : x
  2. Step 2: Convert to fraction form
    156,868.20/235,302.30 = 83,140.20/x
  3. Step 3: Cross multiply
    156,868.20x = 235,302.30 × 83,140.20
  4. Step 4: Simplify right side
    156,868.20x = 19,563,080,282.46
  5. Step 5: Solve for x
    x = 19,563,080,282.46/156,868.20
  6. Step 6: Final answer
    x = 124,710.30

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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.