Home / 131,376.70-181,300.02-74,788

Finding the Fourth Proportional to 131,376.70, 181,300.02 and 74,788

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Solution

The fourth proportional to 131,376.70, 181,300.02 and 74,788 is: 103,207.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,376.70 : 181,300.02 = 74,788 : x
  2. Step 2: Convert to fraction form
    131,376.70/181,300.02 = 74,788/x
  3. Step 3: Cross multiply
    131,376.70x = 181,300.02 × 74,788
  4. Step 4: Simplify right side
    131,376.70x = 13,559,065,895.76
  5. Step 5: Solve for x
    x = 13,559,065,895.76/131,376.70
  6. Step 6: Final answer
    x = 103,207.54

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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.