Home / 130,438.77-180,008.39-73,082.32

Finding the Fourth Proportional to 130,438.77, 180,008.39 and 73,082.32

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Solution

The fourth proportional to 130,438.77, 180,008.39 and 73,082.32 is: 100,855.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,438.77 : 180,008.39 = 73,082.32 : x
  2. Step 2: Convert to fraction form
    130,438.77/180,008.39 = 73,082.32/x
  3. Step 3: Cross multiply
    130,438.77x = 180,008.39 × 73,082.32
  4. Step 4: Simplify right side
    130,438.77x = 13,155,430,760.66
  5. Step 5: Solve for x
    x = 13,155,430,760.66/130,438.77
  6. Step 6: Final answer
    x = 100,855.22

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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.