Home / 142,777.10-197,033.76-79,116.26

Finding the Fourth Proportional to 142,777.10, 197,033.76 and 79,116.26

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Solution

The fourth proportional to 142,777.10, 197,033.76 and 79,116.26 is: 109,181.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,777.10 : 197,033.76 = 79,116.26 : x
  2. Step 2: Convert to fraction form
    142,777.10/197,033.76 = 79,116.26/x
  3. Step 3: Cross multiply
    142,777.10x = 197,033.76 × 79,116.26
  4. Step 4: Simplify right side
    142,777.10x = 15,588,574,184.94
  5. Step 5: Solve for x
    x = 15,588,574,184.94/142,777.10
  6. Step 6: Final answer
    x = 109,181.19

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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.