Home / 143,118.16-197,508.53-78,592.77

Finding the Fourth Proportional to 143,118.16, 197,508.53 and 78,592.77

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Solution

The fourth proportional to 143,118.16, 197,508.53 and 78,592.77 is: 108,461.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,118.16 : 197,508.53 = 78,592.77 : x
  2. Step 2: Convert to fraction form
    143,118.16/197,508.53 = 78,592.77/x
  3. Step 3: Cross multiply
    143,118.16x = 197,508.53 × 78,592.77
  4. Step 4: Simplify right side
    143,118.16x = 15,522,742,667.81
  5. Step 5: Solve for x
    x = 15,522,742,667.81/143,118.16
  6. Step 6: Final answer
    x = 108,461.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.