Home / 130,557-180,168.84-73,972.20

Finding the Fourth Proportional to 130,557, 180,168.84 and 73,972.20

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Solution

The fourth proportional to 130,557, 180,168.84 and 73,972.20 is: 102,081.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,557 : 180,168.84 = 73,972.20 : x
  2. Step 2: Convert to fraction form
    130,557/180,168.84 = 73,972.20/x
  3. Step 3: Cross multiply
    130,557x = 180,168.84 × 73,972.20
  4. Step 4: Simplify right side
    130,557x = 13,327,485,466.25
  5. Step 5: Solve for x
    x = 13,327,485,466.25/130,557
  6. Step 6: Final answer
    x = 102,081.74

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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.