Home / 156,802.47-216,387.67-85,182.55

Finding the Fourth Proportional to 156,802.47, 216,387.67 and 85,182.55

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Solution

The fourth proportional to 156,802.47, 216,387.67 and 85,182.55 is: 117,552.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,802.47 : 216,387.67 = 85,182.55 : x
  2. Step 2: Convert to fraction form
    156,802.47/216,387.67 = 85,182.55/x
  3. Step 3: Cross multiply
    156,802.47x = 216,387.67 × 85,182.55
  4. Step 4: Simplify right side
    156,802.47x = 18,432,454,142.13
  5. Step 5: Solve for x
    x = 18,432,454,142.13/156,802.47
  6. Step 6: Final answer
    x = 117,552.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.