Home / 131,075.66-180,882.24-72,930.22

Finding the Fourth Proportional to 131,075.66, 180,882.24 and 72,930.22

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Solution

The fourth proportional to 131,075.66, 180,882.24 and 72,930.22 is: 100,642.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,075.66 : 180,882.24 = 72,930.22 : x
  2. Step 2: Convert to fraction form
    131,075.66/180,882.24 = 72,930.22/x
  3. Step 3: Cross multiply
    131,075.66x = 180,882.24 × 72,930.22
  4. Step 4: Simplify right side
    131,075.66x = 13,191,781,557.29
  5. Step 5: Solve for x
    x = 13,191,781,557.29/131,075.66
  6. Step 6: Final answer
    x = 100,642.50

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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.