Home / 130,959.36-180,713.16-74,379.24

Finding the Fourth Proportional to 130,959.36, 180,713.16 and 74,379.24

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Solution

The fourth proportional to 130,959.36, 180,713.16 and 74,379.24 is: 102,637.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,959.36 : 180,713.16 = 74,379.24 : x
  2. Step 2: Convert to fraction form
    130,959.36/180,713.16 = 74,379.24/x
  3. Step 3: Cross multiply
    130,959.36x = 180,713.16 × 74,379.24
  4. Step 4: Simplify right side
    130,959.36x = 13,441,307,498.80
  5. Step 5: Solve for x
    x = 13,441,307,498.80/130,959.36
  6. Step 6: Final answer
    x = 102,637.24

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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.