Home / 156,816.72-216,496.76-103,257.36

Finding the Fourth Proportional to 156,816.72, 216,496.76 and 103,257.36

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Solution

The fourth proportional to 156,816.72, 216,496.76 and 103,257.36 is: 142,554.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,816.72 : 216,496.76 = 103,257.36 : x
  2. Step 2: Convert to fraction form
    156,816.72/216,496.76 = 103,257.36/x
  3. Step 3: Cross multiply
    156,816.72x = 216,496.76 × 103,257.36
  4. Step 4: Simplify right side
    156,816.72x = 22,354,883,886.15
  5. Step 5: Solve for x
    x = 22,354,883,886.15/156,816.72
  6. Step 6: Final answer
    x = 142,554.21

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1.5x scale

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.