Home / 130,780.78-196,035.09-60,602.38

Finding the Fourth Proportional to 130,780.78, 196,035.09 and 60,602.38

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Solution

The fourth proportional to 130,780.78, 196,035.09 and 60,602.38 is: 90,840.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,780.78 : 196,035.09 = 60,602.38 : x
  2. Step 2: Convert to fraction form
    130,780.78/196,035.09 = 60,602.38/x
  3. Step 3: Cross multiply
    130,780.78x = 196,035.09 × 60,602.38
  4. Step 4: Simplify right side
    130,780.78x = 11,880,193,017.51
  5. Step 5: Solve for x
    x = 11,880,193,017.51/130,780.78
  6. Step 6: Final answer
    x = 90,840.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.