Home / 130,532.30-180,130.32-76,820.26

Finding the Fourth Proportional to 130,532.30, 180,130.32 and 76,820.26

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Solution

The fourth proportional to 130,532.30, 180,130.32 and 76,820.26 is: 106,009.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,532.30 : 180,130.32 = 76,820.26 : x
  2. Step 2: Convert to fraction form
    130,532.30/180,130.32 = 76,820.26/x
  3. Step 3: Cross multiply
    130,532.30x = 180,130.32 × 76,820.26
  4. Step 4: Simplify right side
    130,532.30x = 13,837,658,016.28
  5. Step 5: Solve for x
    x = 13,837,658,016.28/130,532.30
  6. Step 6: Final answer
    x = 106,009.46

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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.