Home / 131,012.39-180,774.57-73,643.76

Finding the Fourth Proportional to 131,012.39, 180,774.57 and 73,643.76

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Solution

The fourth proportional to 131,012.39, 180,774.57 and 73,643.76 is: 101,615.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,012.39 : 180,774.57 = 73,643.76 : x
  2. Step 2: Convert to fraction form
    131,012.39/180,774.57 = 73,643.76/x
  3. Step 3: Cross multiply
    131,012.39x = 180,774.57 × 73,643.76
  4. Step 4: Simplify right side
    131,012.39x = 13,312,919,047.18
  5. Step 5: Solve for x
    x = 13,312,919,047.18/131,012.39
  6. Step 6: Final answer
    x = 101,615.73

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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.