Home / 156,842.16-235,130.95-68,028.76

Finding the Fourth Proportional to 156,842.16, 235,130.95 and 68,028.76

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Solution

The fourth proportional to 156,842.16, 235,130.95 and 68,028.76 is: 101,985.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,842.16 : 235,130.95 = 68,028.76 : x
  2. Step 2: Convert to fraction form
    156,842.16/235,130.95 = 68,028.76/x
  3. Step 3: Cross multiply
    156,842.16x = 235,130.95 × 68,028.76
  4. Step 4: Simplify right side
    156,842.16x = 15,995,667,345.07
  5. Step 5: Solve for x
    x = 15,995,667,345.07/156,842.16
  6. Step 6: Final answer
    x = 101,985.77

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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.