Home / 130,953.78-180,717.48-74,365.56

Finding the Fourth Proportional to 130,953.78, 180,717.48 and 74,365.56

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Solution

The fourth proportional to 130,953.78, 180,717.48 and 74,365.56 is: 102,625.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,953.78 : 180,717.48 = 74,365.56 : x
  2. Step 2: Convert to fraction form
    130,953.78/180,717.48 = 74,365.56/x
  3. Step 3: Cross multiply
    130,953.78x = 180,717.48 × 74,365.56
  4. Step 4: Simplify right side
    130,953.78x = 13,439,156,601.99
  5. Step 5: Solve for x
    x = 13,439,156,601.99/130,953.78
  6. Step 6: Final answer
    x = 102,625.19

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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.