Home / 142,874.56-197,166.90-79,210.96

Finding the Fourth Proportional to 142,874.56, 197,166.90 and 79,210.96

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Solution

The fourth proportional to 142,874.56, 197,166.90 and 79,210.96 is: 109,311.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,874.56 : 197,166.90 = 79,210.96 : x
  2. Step 2: Convert to fraction form
    142,874.56/197,166.90 = 79,210.96/x
  3. Step 3: Cross multiply
    142,874.56x = 197,166.90 × 79,210.96
  4. Step 4: Simplify right side
    142,874.56x = 15,617,779,429.22
  5. Step 5: Solve for x
    x = 15,617,779,429.22/142,874.56
  6. Step 6: Final answer
    x = 109,311.13

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1.5x scale

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.