Home / 156,740.30-235,110.45-38,412.80

Finding the Fourth Proportional to 156,740.30, 235,110.45 and 38,412.80

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Solution

The fourth proportional to 156,740.30, 235,110.45 and 38,412.80 is: 57,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,740.30 : 235,110.45 = 38,412.80 : x
  2. Step 2: Convert to fraction form
    156,740.30/235,110.45 = 38,412.80/x
  3. Step 3: Cross multiply
    156,740.30x = 235,110.45 × 38,412.80
  4. Step 4: Simplify right side
    156,740.30x = 9,031,250,693.76
  5. Step 5: Solve for x
    x = 9,031,250,693.76/156,740.30
  6. Step 6: Final answer
    x = 57,619.20

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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.