Home / 156,730.38-235,106.73-77,765.10

Finding the Fourth Proportional to 156,730.38, 235,106.73 and 77,765.10

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Solution

The fourth proportional to 156,730.38, 235,106.73 and 77,765.10 is: 116,653.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,730.38 : 235,106.73 = 77,765.10 : x
  2. Step 2: Convert to fraction form
    156,730.38/235,106.73 = 77,765.10/x
  3. Step 3: Cross multiply
    156,730.38x = 235,106.73 × 77,765.10
  4. Step 4: Simplify right side
    156,730.38x = 18,283,098,369.12
  5. Step 5: Solve for x
    x = 18,283,098,369.12/156,730.38
  6. Step 6: Final answer
    x = 116,653.19

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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.