Home / 131,767.83-181,715.13-86,485.08

Finding the Fourth Proportional to 131,767.83, 181,715.13 and 86,485.08

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Solution

The fourth proportional to 131,767.83, 181,715.13 and 86,485.08 is: 119,267.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,767.83 : 181,715.13 = 86,485.08 : x
  2. Step 2: Convert to fraction form
    131,767.83/181,715.13 = 86,485.08/x
  3. Step 3: Cross multiply
    131,767.83x = 181,715.13 × 86,485.08
  4. Step 4: Simplify right side
    131,767.83x = 15,715,648,236.69
  5. Step 5: Solve for x
    x = 15,715,648,236.69/131,767.83
  6. Step 6: Final answer
    x = 119,267.72

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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.