Home / 131,528.63-181,466.68-80,488.10

Finding the Fourth Proportional to 131,528.63, 181,466.68 and 80,488.10

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Solution

The fourth proportional to 131,528.63, 181,466.68 and 80,488.10 is: 111,047.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,528.63 : 181,466.68 = 80,488.10 : x
  2. Step 2: Convert to fraction form
    131,528.63/181,466.68 = 80,488.10/x
  3. Step 3: Cross multiply
    131,528.63x = 181,466.68 × 80,488.10
  4. Step 4: Simplify right side
    131,528.63x = 14,605,908,286.51
  5. Step 5: Solve for x
    x = 14,605,908,286.51/131,528.63
  6. Step 6: Final answer
    x = 111,047.37

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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.