Home / 156,718.90-235,116.15-51,532.30

Finding the Fourth Proportional to 156,718.90, 235,116.15 and 51,532.30

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Solution

The fourth proportional to 156,718.90, 235,116.15 and 51,532.30 is: 77,310.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,718.90 : 235,116.15 = 51,532.30 : x
  2. Step 2: Convert to fraction form
    156,718.90/235,116.15 = 51,532.30/x
  3. Step 3: Cross multiply
    156,718.90x = 235,116.15 × 51,532.30
  4. Step 4: Simplify right side
    156,718.90x = 12,116,075,976.65
  5. Step 5: Solve for x
    x = 12,116,075,976.65/156,718.90
  6. Step 6: Final answer
    x = 77,310.88

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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.