Home / 156,968.70-235,582.65-72,858.30

Finding the Fourth Proportional to 156,968.70, 235,582.65 and 72,858.30

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Solution

The fourth proportional to 156,968.70, 235,582.65 and 72,858.30 is: 109,347.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,968.70 : 235,582.65 = 72,858.30 : x
  2. Step 2: Convert to fraction form
    156,968.70/235,582.65 = 72,858.30/x
  3. Step 3: Cross multiply
    156,968.70x = 235,582.65 × 72,858.30
  4. Step 4: Simplify right side
    156,968.70x = 17,164,151,388.50
  5. Step 5: Solve for x
    x = 17,164,151,388.50/156,968.70
  6. Step 6: Final answer
    x = 109,347.60

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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.