Home / 130,832.10-180,538.01-74,243.48

Finding the Fourth Proportional to 130,832.10, 180,538.01 and 74,243.48

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Solution

The fourth proportional to 130,832.10, 180,538.01 and 74,243.48 is: 102,450.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,832.10 : 180,538.01 = 74,243.48 : x
  2. Step 2: Convert to fraction form
    130,832.10/180,538.01 = 74,243.48/x
  3. Step 3: Cross multiply
    130,832.10x = 180,538.01 × 74,243.48
  4. Step 4: Simplify right side
    130,832.10x = 13,403,768,860.77
  5. Step 5: Solve for x
    x = 13,403,768,860.77/130,832.10
  6. Step 6: Final answer
    x = 102,450.15

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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.