Home / 130,335.36-179,820.99-72,966.24

Finding the Fourth Proportional to 130,335.36, 179,820.99 and 72,966.24

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Solution

The fourth proportional to 130,335.36, 179,820.99 and 72,966.24 is: 100,670.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,335.36 : 179,820.99 = 72,966.24 : x
  2. Step 2: Convert to fraction form
    130,335.36/179,820.99 = 72,966.24/x
  3. Step 3: Cross multiply
    130,335.36x = 179,820.99 × 72,966.24
  4. Step 4: Simplify right side
    130,335.36x = 13,120,861,513.38
  5. Step 5: Solve for x
    x = 13,120,861,513.38/130,335.36
  6. Step 6: Final answer
    x = 100,670.01

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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.