Home / 156,931.21-216,583.23-93,268.45

Finding the Fourth Proportional to 156,931.21, 216,583.23 and 93,268.45

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Solution

The fourth proportional to 156,931.21, 216,583.23 and 93,268.45 is: 128,721.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,931.21 : 216,583.23 = 93,268.45 : x
  2. Step 2: Convert to fraction form
    156,931.21/216,583.23 = 93,268.45/x
  3. Step 3: Cross multiply
    156,931.21x = 216,583.23 × 93,268.45
  4. Step 4: Simplify right side
    156,931.21x = 20,200,382,158.09
  5. Step 5: Solve for x
    x = 20,200,382,158.09/156,931.21
  6. Step 6: Final answer
    x = 128,721.25

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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.