Home / 156,569.65-234,838.90-72,328.61

Finding the Fourth Proportional to 156,569.65, 234,838.90 and 72,328.61

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Solution

The fourth proportional to 156,569.65, 234,838.90 and 72,328.61 is: 108,485.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,569.65 : 234,838.90 = 72,328.61 : x
  2. Step 2: Convert to fraction form
    156,569.65/234,838.90 = 72,328.61/x
  3. Step 3: Cross multiply
    156,569.65x = 234,838.90 × 72,328.61
  4. Step 4: Simplify right side
    156,569.65x = 16,985,571,210.93
  5. Step 5: Solve for x
    x = 16,985,571,210.93/156,569.65
  6. Step 6: Final answer
    x = 108,485.72

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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.