Home / 156,501.32-234,351.30-86,302.76

Finding the Fourth Proportional to 156,501.32, 234,351.30 and 86,302.76

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Solution

The fourth proportional to 156,501.32, 234,351.30 and 86,302.76 is: 129,233.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,501.32 : 234,351.30 = 86,302.76 : x
  2. Step 2: Convert to fraction form
    156,501.32/234,351.30 = 86,302.76/x
  3. Step 3: Cross multiply
    156,501.32x = 234,351.30 × 86,302.76
  4. Step 4: Simplify right side
    156,501.32x = 20,225,163,999.59
  5. Step 5: Solve for x
    x = 20,225,163,999.59/156,501.32
  6. Step 6: Final answer
    x = 129,233.18

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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.