Home / 131,658.56-181,684.32-75,088.16

Finding the Fourth Proportional to 131,658.56, 181,684.32 and 75,088.16

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Solution

The fourth proportional to 131,658.56, 181,684.32 and 75,088.16 is: 103,619.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,658.56 : 181,684.32 = 75,088.16 : x
  2. Step 2: Convert to fraction form
    131,658.56/181,684.32 = 75,088.16/x
  3. Step 3: Cross multiply
    131,658.56x = 181,684.32 × 75,088.16
  4. Step 4: Simplify right side
    131,658.56x = 13,642,341,289.65
  5. Step 5: Solve for x
    x = 13,642,341,289.65/131,658.56
  6. Step 6: Final answer
    x = 103,619.10

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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.