Home / 131,585.72-181,586.05-74,225.16

Finding the Fourth Proportional to 131,585.72, 181,586.05 and 74,225.16

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Solution

The fourth proportional to 131,585.72, 181,586.05 and 74,225.16 is: 102,429.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,585.72 : 181,586.05 = 74,225.16 : x
  2. Step 2: Convert to fraction form
    131,585.72/181,586.05 = 74,225.16/x
  3. Step 3: Cross multiply
    131,585.72x = 181,586.05 × 74,225.16
  4. Step 4: Simplify right side
    131,585.72x = 13,478,253,846.97
  5. Step 5: Solve for x
    x = 13,478,253,846.97/131,585.72
  6. Step 6: Final answer
    x = 102,429.46

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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.