Home / 156,971.60-235,457.40-107,205.20

Finding the Fourth Proportional to 156,971.60, 235,457.40 and 107,205.20

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Solution

The fourth proportional to 156,971.60, 235,457.40 and 107,205.20 is: 160,807.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,971.60 : 235,457.40 = 107,205.20 : x
  2. Step 2: Convert to fraction form
    156,971.60/235,457.40 = 107,205.20/x
  3. Step 3: Cross multiply
    156,971.60x = 235,457.40 × 107,205.20
  4. Step 4: Simplify right side
    156,971.60x = 25,242,257,658.48
  5. Step 5: Solve for x
    x = 25,242,257,658.48/156,971.60
  6. Step 6: Final answer
    x = 160,807.80

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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.