Home / 131,397.24-181,307.34-74,809.72

Finding the Fourth Proportional to 131,397.24, 181,307.34 and 74,809.72

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Solution

The fourth proportional to 131,397.24, 181,307.34 and 74,809.72 is: 103,225.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,397.24 : 181,307.34 = 74,809.72 : x
  2. Step 2: Convert to fraction form
    131,397.24/181,307.34 = 74,809.72/x
  3. Step 3: Cross multiply
    131,397.24x = 181,307.34 × 74,809.72
  4. Step 4: Simplify right side
    131,397.24x = 13,563,551,339.34
  5. Step 5: Solve for x
    x = 13,563,551,339.34/131,397.24
  6. Step 6: Final answer
    x = 103,225.54

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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.