Home / 131,937.08-182,072.72-71,509.20

Finding the Fourth Proportional to 131,937.08, 182,072.72 and 71,509.20

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Solution

The fourth proportional to 131,937.08, 182,072.72 and 71,509.20 is: 98,682.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,937.08 : 182,072.72 = 71,509.20 : x
  2. Step 2: Convert to fraction form
    131,937.08/182,072.72 = 71,509.20/x
  3. Step 3: Cross multiply
    131,937.08x = 182,072.72 × 71,509.20
  4. Step 4: Simplify right side
    131,937.08x = 13,019,874,549.02
  5. Step 5: Solve for x
    x = 13,019,874,549.02/131,937.08
  6. Step 6: Final answer
    x = 98,682.45

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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.