Home / 130,116.16-179,551.96-72,760.21

Finding the Fourth Proportional to 130,116.16, 179,551.96 and 72,760.21

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Solution

The fourth proportional to 130,116.16, 179,551.96 and 72,760.21 is: 100,404.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,116.16 : 179,551.96 = 72,760.21 : x
  2. Step 2: Convert to fraction form
    130,116.16/179,551.96 = 72,760.21/x
  3. Step 3: Cross multiply
    130,116.16x = 179,551.96 × 72,760.21
  4. Step 4: Simplify right side
    130,116.16x = 13,064,237,417.75
  5. Step 5: Solve for x
    x = 13,064,237,417.75/130,116.16
  6. Step 6: Final answer
    x = 100,404.42

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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.