Home / 130,802.72-180,486.22-82,397.12

Finding the Fourth Proportional to 130,802.72, 180,486.22 and 82,397.12

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Solution

The fourth proportional to 130,802.72, 180,486.22 and 82,397.12 is: 113,694.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,802.72 : 180,486.22 = 82,397.12 : x
  2. Step 2: Convert to fraction form
    130,802.72/180,486.22 = 82,397.12/x
  3. Step 3: Cross multiply
    130,802.72x = 180,486.22 × 82,397.12
  4. Step 4: Simplify right side
    130,802.72x = 14,871,544,727.69
  5. Step 5: Solve for x
    x = 14,871,544,727.69/130,802.72
  6. Step 6: Final answer
    x = 113,694.46

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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.