Home / 130,421.24-195,631.86-68,077.16

Finding the Fourth Proportional to 130,421.24, 195,631.86 and 68,077.16

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Solution

The fourth proportional to 130,421.24, 195,631.86 and 68,077.16 is: 102,115.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,421.24 : 195,631.86 = 68,077.16 : x
  2. Step 2: Convert to fraction form
    130,421.24/195,631.86 = 68,077.16/x
  3. Step 3: Cross multiply
    130,421.24x = 195,631.86 × 68,077.16
  4. Step 4: Simplify right side
    130,421.24x = 13,318,061,434.32
  5. Step 5: Solve for x
    x = 13,318,061,434.32/130,421.24
  6. Step 6: Final answer
    x = 102,115.74

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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.