Home / 456,176.40-684,068.88-156,687.12

Finding the Fourth Proportional to 456,176.40, 684,068.88 and 156,687.12

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Solution

The fourth proportional to 456,176.40, 684,068.88 and 156,687.12 is: 234,963.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,176.40 : 684,068.88 = 156,687.12 : x
  2. Step 2: Convert to fraction form
    456,176.40/684,068.88 = 156,687.12/x
  3. Step 3: Cross multiply
    456,176.40x = 684,068.88 × 156,687.12
  4. Step 4: Simplify right side
    456,176.40x = 107,184,782,688.83
  5. Step 5: Solve for x
    x = 107,184,782,688.83/456,176.40
  6. Step 6: Final answer
    x = 234,963.45

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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.